To compare how different types of soil absorb water, Mei set up a science experiment. She poked holes into the bottoms of each of three plastic cups. She then filled one cup with sand, one with soil, and left the third cup empty. Next, she placed each cup in a stand over a beaker. Mei poured 400 milliliters (mL) of water into the cup containing the soil. She measured the amount of water collected in the beaker beneath the cup at one-minute (min) intervals for three min. Finally, she repeated the process two more times, first with the cup containing sand and then with the empty cup. Which of these conditions is NOT held constant in this experiment? A. the number of holes in each cup B. the time intervals C. the type of soil D. the amount of water

Ok so the thing is, Im having trouble with this problem to. lol. But, I think its "The type of soil." Please dont be mad if its wrong

Explanation:

I think this because it is the one thing that is not held Constant

according to hess's theory, when the magma cooled, it would expand and push the tectonic plates apart. it would push the north and south america plates to the west and eurasia and africa ones to the east. the atlantic ocean would get wider but the coastlines of the masses would stay the same.

harry hammond hess was a geologist and a united states navy officer in the second world war. he is considered to be one of the founding fathers of the theory of plate tectonics. he is known for his theories on sea floor spreading, stating that the movement of the continents was the result of see floor spreading. the continents are attached to the plates and do not move separately. the plates themselves shift and change shape, carrying the continents along.