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: Dana wants the gas to move with as little energy as possible so the particles can move slowly. Dana will then do this to the gas
Answer: cool
If the gas is heated, the particles will move faster as they gain more energy.

Question: An increase in birth rates indicates a/an _____ in the food supply.
Answer: increase
Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration.

Question: Reid notices changes in the weather and temperature from 100 years ago. This likely was caused by _____ greenhouse gas levels.
Answer: increased
As greenhouse gases increase, changes will be more extreme.