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: Don is looking at electromagnetic waves, and sees that the one's he observing have higher frequencies. Don is able to know then that the photons have energy that is
Answer: higher

A: In electromagnetic waves with higher frequencies, photons have more energy.
****
Q: Question: An increase in food will likely lead to _____ lifespans.
Answer: longer

A: New farm machines were invented. They increased the amount of food that could be produced. With more food, people were healthier and could live longer.
****
Q: Question: Jimbo was playing with magnetic field lines by manipulating them. If he moves the field lines less close, what happens to the strength of the field?
Answer: decreases

A:
The closer the field lines are drawn together, the stronger the field being described.
****