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: 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
Friction is greater when objects have rougher surfaces or are heavier so they press together with greater force.

Question: Plants engage in less photosynthesis when there is less sunlight. Because of this, there is _____ produced. 
 Answer: less glucose
As photosynthesis increases, the amount of stored glucose in the guard cells increases.

Question: Something that has a little hydroxide is a _____ base 
 Answer: weaker

A stronger base produces more hydroxide ions than a weaker base.