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: John was looking at sunscreen at the retail store. He noticed that sunscreens that had higher SPF would offer protection that is
Answer: Longer

Answer: A sunscreen with a higher SPF protects the skin longer.

Question: Question: When we pack a fewer things into a box it becomes
Answer: less dense

Answer: The more tightly packed the particles inside the material are, the more dense we say they are.

Question: Question: If planet W and planet X have a combined mass that is twice that of the combined mass of planet Y and planet Z, the gravitational force between planets Y and Z will be _____ that of W and X.
Answer: less than

Answer:
The greater the mass of the objects, the stronger the gravitational force of attraction between them.