The answer is very dependant on the magnitude of the class, the length of a room, the form of the room, or the equipment inside the room. In general, for just a small group of students.
Magnitude is a unitless measurement of an object's brightness in a specific passband, usually in the infrared or visible spectrum, but sometimes over all wavelengths. Hipparchus established an imperfect but methodical determination of a magnitude of items in ancient times. The apparent magnitude is indeed the brightness of the an object as seen from Earth in the night sky. The apparent magnitude of an object is determined by its inherent luminosity, distance, and the extinction that reduces its brightness. The absolute magnitude describes an object's inherent luminosity and is defined as being equal to the peak amplitude that the object would possess if it were put at a specific distance from Earth, 10 parsecs with stars.
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Rank the following areas in order of largest to smallest change in average temperature since 1880.a. northern Canada (largest temp change)b. western europe.c. australia.d. southern africa.e. eastern Pacific Ocean.
The recent several centuries have been the hottest in the previous 100,000 years. In comparison to 1859–1890, the temperatures in the years 2011–2020 was 1.09°C higher.
South Africa: affluent or impoverished?South Africa's economy is the third largest on the continent and the continent's most industrialized, technically sophisticated, and diversified. One of just eight countries in Africa with an upper-middle-income economy is South Africa.
Who competes in South Africa?The Compatriots Marathon, the Sea Miler, the Knysna Forests Marathon, in Cape Town Marathon, and the Always Loskop Marathon are five yearly South African marathons that are worth taking into consideration. Every year, the Comrades typically take place in June.
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On the map to the right, what is the most likely reason that some regions overlap
Answer:
wheres the map?
Explanation:
In subtractive color mixing, like with ink on paper, when all three primary colors are combined the result is?
When all three fundamental colors are mixed through subtractive color mixing, such as with ink on paper, the outcome is black or any other dark color.
- Typically, the first two examples of mixing are explained using three primary colors and three secondary colors (colors made by mixing two of the three primary colors in equal amounts). Black will arise from subtractive mixing with all three primaries, while white will come from additive mixing with all three primaries.
- All the hues of the white light spectrum will be absorbed if the three subtractive primary color filters are added together. Each filter (or pigment) transmits (diffusely reflects) the other colors while absorbing its complementary color.
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when a stream flows into the ocean, that stream is at: group of answer choices ultimate base level temporary base level
when a stream flows into the ocean, that stream is at: ultimate base level. The plane that is created when the sea level is projected beneath landmasses is known as the "ultimate base level." Erosion causes topography to typically descend to this base level, eventually becoming a peneplain near the conclusion of an erosion cycle.
Sea level is the ultimate base level because streams won't erode their channels below this level. Along the course of a stream, numerous transient base levels may exist. When a dam is built, a lake is created that acts as a temporary base level for the river's upstream section. The base level of a stream is the lowest point to which running water can cause the stream channel to erode. It comes in two varieties: local base level and ultimate base level. The height of the ocean's surface, or sea level, is also referred to as the absolute base level. Local base levels include lakes, rock formations that are resistant to erosion, and rivers that serve as base levels for their tributaries. The ultimate base level is sea level. Sea level is the ultimate base level because streams won't erode their channels below this level. Along the course of a stream, numerous transient base levels may exist. Sea level is the ultimate base level because streams won't erode their channels below this level. Along the course of a stream, numerous transient base levels may exist.
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the climate in most of canada is ? A small part of canada has a ? climate
Canada offers a vast array of climates due to its extensive latitudinal range.
Define climate.Climate is the average weather over a longer length of time in a particular place. A description of a climate includes details such as the typical temperature in each season, the amount of rainfall, and the amount of sunshine.
The country's northern two-thirds experience short, cool summers and extremely frigid winters, which are reminiscent to those in northern Scandinavia. A typical continental climate with extremely frigid winters, scorching summers, and little to no precipitation can be found in the central southern region of the interior plains. The weather in southern Ontario and Quebec is similar to some areas of the American Midwest, with hot, muggy summers and cold, snowy winters. All of Canada experiences a winter season with average temperatures below freezing and persistent snow cover, with the exception of the west coast.
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Describe the transformation from snow to ice by arranging the following steps in order.
a. Pressure melts snow b. Refreezing forms ice c. Tightly packed fin forms. d. Snow packs together.
d. Snow packs together describe the transformation from snow to ice by arranging the following steps in order.
Snow packs together seize and squeeze air while they're compacted into rounded grains. Snowflakes combine and change shape. between snow grains, air bubbles constrict and firn is created. the load of the ice is what reasons snow to turn into firn after which ultimately stable ice.
through the years, snow gets compacted into firn, which is sooner or later transformed into glacier ice. In frigid locations, like mountain peaks or the poles, snow accumulates. Snow is a time period used in glaciology to explain cloth that hasn't altered because it fell.
although each snow and ice are frozen styles of water, they've special characteristics. Snow is precipitation that falls from the sky in a frozen, crystalline situation, comparable to rain or hail.
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what fundamental concept states that in a horizontal sequence of conformable sedimentary strata, each higher bed is younger than the bed below it? group of answer choices theory of correlative deposition law of cross cutting relationships law of original correlation law of superposition
Law of superposition fundamental concept states that in a horizontal sequence of conformable sedimentary strata, each higher bed is younger than the bed below it.Thus correct option (D).
A key stratigraphic principle known as the law of superposition states that the oldest layer in a series of sedimentary rock layers is at the bottom and that the layers get younger as they move up the sequence.
An underground drain, for instance, might form its silt back-fill some time after the ground directly above it. Other instances of non-vertical superposition include changes made to existing structures, such as adding new windows and doors to a wall.
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What happens to the temperature of rocks as you go deeper in the earth?
Geologists calculate that for every mile dug beneath the Earth's surface, the temperature rises 15 degrees Fahrenheit and the pressure rises at a rate of about 7,300 pounds per square inch.
The deeper you go into the Earth, the hotter it becomes. The temperature at the base of the crust is around 1000°C, around 3500°C at the base of the mantle, and around 6,000°C at the center of the Earth. In the deep earth, there are three major sources of heat: (1) heat generated when the planet formed and assimilated, which has yet to be lost; (2) friction force heating, induced by denser base material sinking to the planet's center; and (3) heat from radioactive element decay.
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Rank the following areas in order of largest to smallest change in average temperature since 1880.
a. northern Canada b. western Europe c. southern Africa d. Australia
In terms of change in average temperature since 1880, the areas with the largest to smallest changes are :
a. Northern Canadab. Western Europed. Australiac. Southern AfricaHow have temperatures changed since 1880 ?Since the late 1800s, the average surface temperature of the Earth has risen by around 1.8°F (1.0°C).
Carbon dioxide (CO2) and other greenhouse gas emissions from human activities are largely to blame for the planet's warming. These practices include the use of land for different purposes, such as agriculture and deforestation, as well as the combustion of fossil fuels like coal and oil.
The additional heat is causing regional and seasonal temperature extremes, decreasing snow cover and sea ice, increasing heavy rainfall, and altering plant and animal habitat ranges, both expanding and contracting some.
The area that has been worst hit by changes in average temperature is Northern Canada which has seen a lot of melting. Western Europe is next on that list, with Australia growing significantly hotter. Southern Africa rounds off the list.
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How does the united kingdom have environmental possibilism??
Answer: In the UK, they are tying to minimise waste, reuse materials as much as they can and manage materials at the end of their life to minimise the impact on the environment and around them.
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What is displacement in geology?
The separation between segments or points that were formerly connected or close together. On either side of the fault surface, layers of rock that have been moved by faults exhibit displacement.
Replace, supersede, and supplant are a few common synonyms for displace. Displace implies an ousting or dislodging even though all of these words mean "to put out of a usual or proper place or into the place of another."
How does geology measure displacement?
The offset between the footwall and hanging-wall cutoffs in a cross section for several rock units in a fault-related fold is measured (the displacement), and it is plotted as a function of distance along the fault surface from a specific point along the fault to create a displacement-distance profile.
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Most deserts occur at approximately 30° latitudes. Which of the following statements BEST reflects this finding?
Trade winds pull all moisture away from land and to the ocean at 30° latitude.
Warm dry air descends at 30° latitude.
Cool dry air descends at 30° latitude.
Westerlies pull all moisture away from land and to the ocean at 30° latitude.
As most deserts occur at approximately 30° latitudes, the best statement that reflects this finding is cool dry air descends at 30° latitude.
A desert refers to a barren area of landscape which is characterized by little precipitation and, consequently, living conditions are hostile for plant and animal life. Deserts cover over one-fifth of the Earth's land area, and they are found on every continent. It is a place that receives less than 10 inches (25 centimeters) of rain per year and belongs to a wider class of regions called drylands. Most deserts are found along the 30-degree latitude line due to the pattern of cold-water currents, which force cool dry air over the land at 30°.
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which mountains form a natural boundary between european russia and siberian russia?
The Ural Mountains form the border between European Russia and Siberian Russia.
The Ural Mountains, or simply Ural Mountains, run roughly north-south through western Russia, from the coast of the Arctic Ocean to the Ural River to northwestern Kazakhstan. The Urals are 2,500 km long and 150 km wide. The highest peak of the Ural Mountains is Mount Narodnaya.
The Ural Mountains formed as a result of continental collisions 250 to 300 million years ago, making them one of the oldest mountain ranges on Earth.
The Urals contain more than 1000 types of precious minerals and are rich in resources such as metal ores, coal, precious and semi-precious stones. This is why the Urals are one of the richest mineral regions in the world.
The main rock types found there are rock Carboniferous metamorphic rocks, igneous rocks, and sedimentary rocks.
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What does a whale need to survive?
Whales need to develop echolocation, thick layers of blubber, improved lungs, stronger hearing, and larger arteries, among other things, to help them adapt to the ocean in order to assure their survival and well-being.
A big part of a whale's life is their blubber. Whales can stay warm and live in icy conditions because they have blubber, which would otherwise make them inhospitable. Some whales may also store energy in their blubber for use on long voyages or when food is in short supply. The blue whale migrates for up to four months at a time, during which time it survives mostly on the body fat and calories stored in its blubber.
Toothed whales may learn a lot about their surroundings by using echolocation, including how big an object is, how fast it is moving, whether it is above or below them, what direction it is travelling in, how far away it is, and if it is hollow or solid. Whales can avoid colliding with other things when they can't see their surroundings thanks to echolocation, which is very helpful in low-visibility environments.
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1) how old is the oldest volcano in the system? (the ages on the map are millions of years, ma). ma
The oldest known active volcano is supposed to be Mount Etna in Sicily, Italy. It began erupting in the year 1500 BC, and since then, there have been around 200 eruptions. It is also one of the world's largest volcanoes that is known to exist.
Pliny the Younger witnessed what transpired while in a town 30 kilometers west of Mount Vesuvius and recorded his observations in a letter. Many people believe Pliny the Younger was the first person to discover volcanoes, and this is said to be the first account of a volcanic explosion in writing. Unzen. The oldest active volcano in the world, Mt. Unzen, is thought to have formed about 2.5 million years ago on the Japanese island of Kyushu. Vesuvius might have been the first officially recorded volcanic explosion in history thanks to Pliny's firsthand report. Eruptions as recently as roughly 50,000 years ago generated Koko Crater, one of the youngest of the features known as the Honolulu Volcanics. Another Honolulu volcano, Diamond Head, is 0.4–0.5 million years old. South of ancient Rome, on the Italian coast, in the shadow of Mount Vesuvius, an active volcano, sat Pompeii, a thriving tourist destination. The city of Pompeii was buried under a thick layer of volcanic ash during its most well-known eruption, which occurred in the year 79 A.D.
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g dates of volcanic eruptiontemperature recorded before eventtemperature recorded 2 year after the eventtemperature recorded 3 years after the eventtemperature recorded 4 years after the event 1883 krakatoa 1902 santa maria 1980 mount st. helen 1991 pinatubo use the temperature chart above to compare temperatures and fill out the rest of the table of volcanic eruptions. how much of an effect have these eruptions had on the overall temperature? how long does it take before temperatures become more normal again?
Gases and dust emitted into the atmosphere during volcanic eruptions have an effect on the climate. By obstructing solar sunlight, the majority of the debris that volcanoes launch into orbit cools the planet. The cooling effect might last for months or years, depending on the eruption's characteristics.
What exactly are volcanic eruptions and why do they occur?
When lava and gas are released from a volcano, often in an explosive way, an eruption takes place. A "glowing avalanche," which occurs when recently erupted lava flows down a volcano's flanks, is the most hazardous type of eruption. They can heat up to 1,200 degrees Fahrenheit and travel swiftly.
How does lava form?
When lava erupts, it is made up of a mixture of crystals, liquid, and bubbles. Volcanic glass is produced as the liquid "freezes." Lava is chemically composed of silicon, oxygen, aluminium, iron, magnesium, calcium, sodium, potassium, phosphorus, and titanium, along with other elements in incredibly minute proportions.
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Circulation of both the atmosphere and the oceans is driven by what type of currents?.
Circulation of both the atmosphere and the oceans are driven by global wind systems that are fueled by energy from the Sun.
How are atmospheric and oceanic circulation interconnected?The two systems are complexly linked to each other and are responsible for Earth's weather and climate. The oceans help to regulate temperature in the lower part of the atmosphere. The atmosphere is in large part responsible for the circulation of ocean water through waves and currents.The circulation of both is similar, while atmosphere circulation is the movement of air throughout the atmosphere, while oceanic circulation is the movement of water within the ocean basins. In both cases fluids (air and water) flow in complex three dimensional pattern distributing thermal energy from warm low latitude areas to colder, higher latitude areas.There are three basic waveforms used in commercial therapeutic electrical stimulation units: direct current, alternating current, and pulsed current.Learn about ocean circulation here: brainly.com/question/11695116
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How do killer whales survive in the ocean?
Killer Whales are able to survive in the deep freezing water because of the layer of fat covering their body underneath the sea. The layer of the fat is called blubber.
Killer whale survive in the deep water. Killer whales are found in the open ocean but they seem to be most abundant in coastal waters. Killer whales are most abundant in the Pacific Northwest along northern Norway's coast in the Atlantic and in the higher latitudes of the Southern Ocean. In the North Atlantic, type 1 killer whales are found in the waters of the northeast Atlantic and Great Britain while type 2 killer whales are mainly spotted off the west coast of Ireland and Scotland. The killer whale also known as orca. This is the ocean’s top predator. historical threats to killer whales included commercial hunting and culling to protect fisheries from killer whales. Several different populations and ecotypes of killer whales are found throughout the world.
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How might coastal settlement patterns change with increasing coastal erosion?
Studies on early coastal communities at high latitudes can reveal how earlier populations survived in regions with less biodiversity and more seasonality in the resources they could access.
What is coastal erosion?Coastal erosion is the process by which the water wears away land. Typically, this process includes damaging waves eroding away the shoreline (though constructive waves also contribute to coastal erosion).
On non-rocky beaches, coastal erosion creates rock formations where the shoreline has layers of rock or fracture zones with different levels of erosion resistance. Softer terrain erodes far more quickly than tougher terrain, creating structures like tunnels, bridges, columns, and pillars. The coast usually evens out over time.
Hydraulic action, abrasion, impact, corrosion by wind and water, and other factors, natural or manmade, can all contribute to coastal erosion.
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What challenges do killer whales face?
Killer whales face the challenge of losing their habitat, and degradation due to pollution and loss due to human intervention
Killer whales, like many other species, face a number of challenges that can impact their populations and habitats. Some of the main challenges facing killer whales include:
Habitat loss: As human populations and development continue to grow, natural habitats are being lost or damaged, directly impacting the availability and quality of habitat for killer whales and other species.
Pollution and climate change: The oceans are subject to pollutants, including chemicals, and plastic waste, which can harm killer whales and their food sources. Further, climate change is impacting the oceans with changes in water temperature which can impact the health and survival of killer whales and other marine species.
Human interaction: Killer whales are often threatened by human activities, such as boat traffic, noise pollution, and accidental entanglement in fishing gear.
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What are the 5 elements of a map and their functions?
The following elements are common to all maps: main body, legend, title, scale and alignment indicators, inset map, and source notes. The data frame is the area of the map where the data layers are displayed. This section is the map's most important and central focus.
Map Title or Heading is one of the five basic components of any map. A map's title, also known as the heading, is typically located at the top of the map. Map Key or Legend The map key, or map legend, defines all of the map symbols, Scale Indicator, Grid, Compass Rose or North Arrow.
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although western europe is very industrially developed, agriculture is the main form of land use. t oor f
It is true that agriculture constitutes the majority of land usage in Western Europe. True is the appropriate response.
What kind of land use dominates Western Europe?Europe is one of the continents that is used most frequently globally. For infrastructure, production systems (especially in agriculture and forestry), and settlement, it consumes the most land (up to 80%).
What role does farming play in Europe?In the EU, over 44 million people work in industries and services associated with food and farming, including 20 million who hold steady employment in the agricultural sector.
What types of agricultural products predominate in Western Europe?Among the principal export items are grains (wheat and barley), dairy products, meats from birds and pigs, as well as fruit and vegetables, olive oil, and wine. The majority of the agricultural products produced in the EU are dairy products, grains, vegetables, wine, fruits, and sugar.
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how does the discharge of a river typically change as the river travels from its headwaters to its mouth?
When a stream enters a lake or ocean velocity inceases
explain why iridium is more common in the interior of the earth than in the surface rocks and crust of the earth.
Answer: Iridium is more common in the earth's interior though still very rare because it behaves as iron does and sinks. So iridium is less common in the crust because it sank to the core during earth's formation.
Explanation:
the conditions on the surface of venus are; mars has a period and direction of rotation that are; the clouds in the atmosphere of venus consist primarily of; an earth-based telescopic view of venus shows; when venus is at its brightest as seen from the earth (near greatest elongation) it is; the internal structure of mercury is most likely a; mercury looks very similar to which planet or satellite in our solar system; the most common surface features on venus are
Craters, volcanoes, mountains, and vast lava plains characterize the terrain. Consequently, Mars and Earth both rotate in the same way (counterclockwise if you look down on the solar system from North of the ecliptic). On Mars, the Sun will always rise in the East, using the same definition of East as on Earth.
In several ways, Mercury common to the moon of Earth. Venus' atmosphere is 96% carbon dioxide. Sulfuric acid is used to make thick clouds between 30 and 60 kilometers in altitude, and the greenhouse effect of CO2 keeps the surface temperature high. The Sun-Earth-Venus angle allows us to observe the planet at its brightest at two points during its orbit. When Venus is at an elongation of 39°, roughly 36 days before and after inferior conjunction, these phenomena—known as peak brilliancy—occur.
Around 85% of the planet's radius, or 1,289 miles (2,074 kilometers), is made up of a substantial metallic core. It appears to be partially molten or liquid based on the evidence. Similar to the mantle and crust of Earth, Mercury's outer layer is only around 400 kilometers (250 miles) thick. Despite Mercury being closer to the Sun, it is the planet with the highest temperature in our solar system. Venus's surface reaches temperatures of roughly 900 °F (475 °C), which are hot enough to melt lead.
The surface is rust-colored, covered in thousands of massive volcanoes, strongly crushed mountains, and other geological features. Venus's surface is obscured by dense clouds, so we can't see it from Earth. But as our understanding of Venus has grown, we now know that the planet's surface is dotted with craters, volcanoes, mountains, and enormous lava plains.
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what are the diverging plates associated with the formation of tristan de cunha in the south atlantic ocean? (2 answers)
The development of a spreading ridges just on Tristan da Cunha mantle plume, which led to the construction of the RGR inside the Brazilian edge .
What plates has Tristan da Cunha located on?Plate of Africa, The southern Atlantic Ocean's volcanoes are the result of volcanic activity in the Tristan hotspot, a volcanic hotspot. The Walvis Ridge and the island at Tristan da Cunha somewhat on African Plate are assumed to have formed as a result.
How was Tristan da Cunha created?Tristan da Cunha seems to be a 400 km east of the Equator active stratovolcano that developed over a magma hotspot. Central Atlantic Ridge On the ocean floor 3500 meters below the surface, the volcano initially erupted three million years ago.
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french physicist henri becquerel discovered radioactivity in 1896, after geologists had developed the geologic time scale. how did becquerels discovery help later geologists as they refined the time scale
The discovery of radioactivity was made in 1896 by French scientist Henri Becquerel, after geologists had already created the geologic time scale. They had no prior knowledge of radiometric dating at the time, but they can now determine absolute age.
The phenomena of radioactivity is the spontaneous breakdown of energetically unstable atomic nuclei into more stable atomic nuclei. A little amount of mass is transformed to energy during the extremely exoergic, statistically unpredictable, first-order process known as radioactive decay. Alpha particles, beta particles, and gamma rays are the three most prevalent forms of radiation. Skin cannot be penetrated by alpha radiation. If alpha-emitting substances are ingested, breathed, or absorbed through open wounds, they may cause injury to people. In nature, atoms can either be stable or unstable. If the forces between the constituents of the nucleus are equal, an atom is stable. If these forces are out of balance or if the nucleus has an excessive amount of internal energy, an atom is unstable (radioactive). This process can be artificially produced by people, such as inside a nuclear reactor, but it can also occur spontaneously in nature. Depending on the particles or energy generated during the reaction, there are many kinds of radioactivity. Alpha particles, beta particles, and gamma rays are the three categories.
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explain 3 effects of faulting on the physical environment
Answer
Explain the effects of faulting on the physical environment
Besides fault scarps, faulting is also responsible for development of Block Mountains like horsts and deep elongated valleys called the grabens and the rift valleys. Faults are also known to cause deflection in the course of streams.
Although western europe is very industrially developed, agriculture is the main form of land use.t/f
Although western Europe is very industrially developed, agriculture is the main form of land use. This statement is true.
The agricultural sector is one of the prominent land users in Europe and thus outlines landscapes in rural areas. Agricultural land plays a significant part in land use patterns across the European Union. Grassland and cropland jointly make up 39% of Europe's land cover. The agricultural sector is a prominent user of natural resources and has a convoluted association with the environment.
In current years, the agricultural sector has been increasingly influenced by drastic weather events. Europe has the loftiest ratio of land (up to 80%) used for settlement, and production procedures (in particular agriculture and forestry).
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the dashed line on the cross section of red canyon is a fault. what relative age dating principle would be most useful in determining when an earthquake last occurred on this fault?
The purpose of relative age dating is to establish the chronological sequence of previous occurrences on Earth. The ideas of superposition and cross-cutting connections are two of the most significant of the few straightforward principles used by geologists in relative age dating.
Without necessarily determining their absolute ages, relative age dating is the science of figuring out the relative sequence of historical events (i.e., the age of an object in comparison to another) (i.e., estimated age). In geology, one stratigraphic column can be correlated with another using rock or surface deposits, fossils, and lithologies. Prior to the early 20th century discovery of radiometric dating, which offered an absolute dating method, archaeologists and geologists utilized relative dating to ascertain the ages of materials. Relative dating is nevertheless a helpful technique even though it can only tell you the order in which a set of events happened, not when they did. In certain ways, relative dating via biostratigraphy is more accurate and is the method of choice in paleontology. The main result of "relative dating" as observed in geology from the 17th century to the early 20th century was the Law of Superposition, which asserts that older strata would be deeper in a site than more recent layers.
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