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.
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Question: Question: Bob is testing samples of ocean water from different places. The sample of water from off India's coast has less dissolved carbon dioxide, than the sample of water from off the United States' coast. Therefore, the water from _____ coast is more acidic. 
 Answer: United States'

Answer: With higher levels of dissolved carbon dioxide in ocean water, the water becomes more acidic.


Question: Question: Fred found a longitudinal wave. The particles are getting further apart. The amplitude is 
 Answer: decreasing

Answer: The closer together the particles in a longitudinal wave are, the greater the amplitude.


Question: Question: Mona lives on a planet with an unstable population. If the number of people on her planet were to decrease, what would happen to global warming on her planet? 
 Answer: decrease

Answer:
For example, more people on the Earth means more people contributing to global warming and pollution.