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: Mary was comparing the size of two objects. If she examined an orange and compared it with a watermelon, which would generate more gravity? 
 Answer: watermelon

A: Less massive objects also have less gravity than more massive objects.
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Q: Question: John was looking at rocks in the valley and noticed something. The more resistant the rocks he looked at were, the amount they remained was 
 Answer: Longer

A: Different types of rocks weather at different rates. More resistant types of rocks will remain longer.
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Q: Question: Noah compares the density of the water in a pond during a hot July day and a cold winter morning. The water on the winter morning is 
 Answer: more dense

A:
Lower temperature and higher salinity yield the densest water.
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