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: If Milo adds mass to an object, what will happen to the force of gravity that object generates? 
 Answer: increases
[EX A]: Objects with greater mass have a stronger force of gravity.

[EX Q]: Question: Karly is studying two rivers and how they are affecting the rock around them. If the 2nd river she looks at is twice as big as the first river she is studying, then Karly would expect to see _____ erosion caused by the 2nd river. 
 Answer: more
[EX A]: The bigger the waves are and the more sediment they carry, the more erosion they cause.

[EX Q]: Question: If Ben exercises daily, and Anna exercises only weekly, who has a stronger heart? 
 Answer: Ben
[EX A]:
When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction.