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.
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Question: 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

Answer: With more surfaces of the rocks exposed, there are more places for chemical weathering to occur.


Question: Question: Eric is researching near the Equator. Rob is researching near the North Pole. The coldest area is 
 Answer: Reid's

Answer: Areas near the equator are warmer than areas near the poles because they receive more direct sunlight.


Question: Question: Katie has a garden and she installs a small waterfall. Since Katie sets the water to flow very swiftly over the sloping fall, the erosion at the bottom of the waterfall will be 
 Answer: more

Answer:
A gentle slope favours slower flow of surface water, reduces erosion, and increases availability of water to plants.