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: Dwayne Johnson is weaker than Kevin Hart because he exercises less and therefore his muscles have grown 
 Answer: smaller.
[A]: Exercising muscles increases their size, and bigger muscles have greater strength.


[Q]: Question: Keith is showering, and is washing himself using a bar of soap, and then again with a loofah. Keith's skin will get better exfoliation, due to the greater friction, when he washes his body using the 
 Answer: loofah
[A]: Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.


[Q]: Question: Ollie moved a tomato plant to an area that receives more sunlight. The tomato plant will now produce _____ food. 
 Answer: more
[A]:
Less photosynthesis means that plants and phytoplankton produce less food.