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: Eric is looking at the shortest electromagnetic wave he has seen today. This wave has the _____ frequency of the day. 
 Answer: highest

Answer: Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies.


Question: Question: Rick had a rock (Rock A) from 1000 feet beneath the crust's surface. He later dug 3000 feet deeper and got a second rock (Rock B). Which rock is likely older? 
 Answer: Rock B

Answer: Older rocks are at the bottom and younger rocks are at the top.


Question: Question: If the number of offspring of an species is decreased, what happens to the number of traits they have in common with one another? 
 Answer: they will have less traits in common

Answer:
Natural selection is the process by which living things with beneficial traits produce more offspring, so their traits become more common over time.