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: 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
[A]: The water erodes the softer rock faster than the harder rock.


[Q]: Question: If Milo removes mass from an object, what will happen to the force of gravity that object generates? 
 Answer: decreases
[A]: Objects with greater mass have a stronger force of gravity.


[Q]: Question: Mike lives in the USA while Mosha lives in Nigeria; which likely uses more energy on a daily basis? 
 Answer: Mike
[A]:
People in the richer nations of the world use far more energy, especially energy from fossil fuels, than people in the poorer nations do.