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.

[EX Q]: Question: John was playing with alkanes in his lab. If he decreased the amount of carbon atoms in an alkane, what would happen to the boiling point of that alkane? 
 Answer: decrease?
[EX A]: Alkanes with more carbon atoms have higher boiling and melting points, so some of them are solids at room temperature.

[EX Q]: Question: Wendy decreases the frequency of her radio's sound waves. These waves now have _____ energy. 
 Answer: less
[EX A]: Higher frequency waves have greater energy.

[EX Q]: Question: Jupiter and Saturn are much larger in mass than Earth and Venus, therefore the force of gravity between Jupiter and Saturn is _____ than the force of gravity between Earth and Venus. 
 Answer: greater
[EX A]:
Objects with greater mass have a stronger force of gravity between them.