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.

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

A: The closer together the particles in a longitudinal wave are, the greater the amplitude.
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Q: Question: Long ago the surface of Venus warmed enough that greenhouse gases escaped into the atmosphere. As a result, the greenhouse effect on that planet 
 Answer: increased

A: An increase in greenhouse gases leads to greater greenhouse effect.
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Q: Question: If Jim is trying to lower the melting point of an isomer, what should he do to the number of branching points of the isomer? 
 Answer: increase them

A:
The more branching there is in isomers, the lower the boiling and melting points are.
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