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: If Mona owns a car and she decides to switch to a cleaner burning fuel, will she create more or less pollution? 
 Answer: less pollution
The advantage to biofuels is that they burn more cleanly than fossil fuels. As a result, they create less pollution and less carbon dioxide.

Question: More oxygen absorption means _____ oxygen in the blood. 
 Answer: more
Smoking reduces the amount of oxygen available for diffusion at the lungs, so less oxygen gets absorbed and blood is oxygenated to a lesser degree.

Question: If Mary drops a 1 cm piece of salt into a glass of water and a .5 cm piece of salt into the water, which will dissolve faster? 
 Answer: .5 cm piece of salt

Smaller pieces dissolve more easily.