In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

[Q]: Question: John monitors the log to see the temperature of the water, and he notices that as the temperature falls, the evaporation rate is 
 Answer: Lower.
[A]: In transipration, at warmer temperatures water molecules move faster, and the rate of evaporation from stomata is therefore much faster.


[Q]: Question: Paul started at the base of a mountain and climbed to its peak. The sky was clear and the sun was beating down on him all day. However, he noticed there was a clear temperature difference between the surface's temperature and the temperature at the top of the mountain peak. Where would he feel more heat? 
 Answer: Surface
[A]: The surface is heated by the Sun and some of that heat radiates back into the air. This makes the temperature higher near the surface than at higher altitudes.


[Q]: Question: Sarah is carrying two tubs, one is filled with rocks, the other with feathers. The tub with rocks will be heavier because it is 
 Answer: more dense
[A]:
A given volume of a denser substance is heavier than the same volume of a less dense substance.