Question 2 of 5
2 Points
A student placed a stack of rocks on a ramp. She added clumps of soil rooted
with live grass. Using a garden hose, she then applied a steady spray of water
that soaked into the soil, making it heavier. What does the student's
experiment model?
A. The role of roots in biological weathering
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B. The role of rainfall in mass wasting
C. The role of chemical agents in weathering of rock
D. The role of humans in glacial melting

sorry idk the answer well to you i have a explaination

explanation: a formula which shows the arrangement of atoms in the molecule of a compound

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

i think it's letter a.