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 Input:
Question: Greta gained weight after eating food. Her force of gravity 
 Answer: increased

Ex Output:
Objects with greater mass have a stronger force of gravity.


Ex Input:
Question: If we are able to recycle less things we have 
 Answer: more waste

Ex Output:
The advantage to biofuels is that they burn more cleanly than fossil fuels. As a result, they create less pollution and less carbon dioxide.


Ex Input:
Question: Clare stopped rubbing two sticks together. The sticks became 
 Answer: cold

Ex Output:

Friction causes the molecules on rubbing surfaces to move faster, so they have more heat energy.