instruction:
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.
question:
Question: If Mona is comparing the erosion rates of two rocks and she notices that granite is softer then marble, which rock will water erode slower? 
 Answer: marble
answer:
The water erodes the softer rock faster than the harder rock.


question:
Question: A cold object indicates its particles are going 
 Answer: slow
answer:
When particles move more slowly, temperature is lower and an object feels cooler.


question:
Question: Joe's urine was almost black; its water content was probably 
 Answer: low
answer:

The darker the urine, the less water it contains.