A scientist wants to know how the distance from a nearby lake affects the amount of nitrogen found in the soil. She collects soil samples at various distances from the lake and measures the amount of nitrogen in the sample What is the manipulated variable in this experiment?
A. The distance from the lake
B. The size of the lake
C. The total number of samples
D. The amount of nitrogen in each sample

Answers

Answer 1

Answer: I would think A (The distance from the lake) but if I'm wrong please let me know and ill fix it ASAP!

Explanation: A manipulated variable is an independent variable subject to the changes of an experiment to analyze its effect on a dependent variable.

Answer 2

a, because if ur question is how the distance affects nitrogen in soul you would have to manipulate the distance several times to figure out different distances do

Related Questions

Deshawn is conducting an experiment about fermentation. He prepares six bottles. The table shows what he puts in each bottle.

bottle 1 1 cup cold water, 1 packet yeast
bottle 2 1 cup cold water, 1 packet yeast, 2 tablespoons sugar
bottle 3 1 cup lukewarm water, 1 packet yeast
bottle 4 1 cup lukewarm water, 1 packet yeast, 2 tablespoons sugar
bottle 5 1 cup hot water, 1 packet yeast
bottle 6 1 cup hot water, 1 packet yeast, 2 tablespoons sugar
He swirls the bottles until the yeast dissolves and puts a balloon over the neck of each bottle. In 20 minutes, he will check and see what has happened.

6 bottles with balloons stretched over the mouths, balloons are not inflated
Part A
What question is being asked through this scientific investigation?

HELP ME

Rewrite the expression c + 0.25c using fractions instead of decimal numbers.

Answers

Answer:

im not sure

Explanation:

Has fermentation occurred?

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