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: If you defocus the sun's rays with a lens they are 
 Answer: weaker

Answer: The more focused the Suns rays are, the more energy an area receives and the warmer it is.


Question: Question: Tasha is studying birth rates in various countries. She looks at two countries. In South Africa, the food supply is currently higher than in Australia. Because of this, the birth rate in South Africa, compared to Australia, will be 
 Answer: higher

Answer: Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration.


Question: Question: If Jim decreases the frequency of the radio waves on his shortwave radio, will the radio use 
 Answer: less energy?

Answer:
In electromagnetic waves with higher frequencies, photons have more energy.