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.

Input: Consider Input: Question: When we lower the temperature of water it becomes 
 Answer: more dense

Output: When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser.


Input: Consider Input: Question: If you are able to remove greenhouse gases the temperature will 
 Answer: go down

Output: A decrease in greenhouse gas levels decreases global temperature and an increase raises global temperature.


Input: Consider Input: Question: We are designing a submarine to study fish that live far below the surface of the ocean. Before we can send a human researcher down in the submarine, we have to be sure it can tolerate the pressure of the water without cracking. The easier test will be to send our submarine down to 
 Answer: 500 feet or


Output: A fluid exerts pressure in all directions, but the pressure is greater at greater depth.