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.

[EX Q]: Question: Olive and Jean were collecting rocks during a hike, they collected too many rocks so the two girls decided to leave some rocks behind to come back to later. Olive decided to bury her rocks in the dirt, and Jean decided to leave hers in a ditch in the sun. When they returned a week later, which girl's rocks changed the most? 
 Answer: Olive
[EX A]: With more surfaces of the rocks exposed, there are more places for chemical weathering to occur.

[EX Q]: Question: Ron was playing with a flashlight. He moved it back and forth slowly, and then quickly. Which motion likely caused less light to bend? 
 Answer: the slow motion
[EX A]: In refraction of light, the greater the change in speed, the more light bends.

[EX Q]: Question: Thea moved to a town that has smaller differences in air pressure than her hometown. The new city likely experiences _____ wind. 
 Answer: less
[EX A]:
Differences in air pressure over the surface of the Earth result in wind. The greater the differences in air pressures, the stronger the wind.