Problem: Two different rivers were stocked with adult fish. Red river had a lower fish population because the fish had hardly reproduced naturally. Black river had doubled it's fish population in two years because they reproduced naturally. Which of the two rivers had more fish release their gametes into the surrounding water ?

A: Black
Problem: Given the question: John is an amateur astronomer. He recently found two stars, star A and star B. Upon observation, he figured out that star A is a blue star, but star B is a red giant. He had to do some research to find out the differences between them. Which star would have smaller diameter, star A or star B?
++++++++++++++++++++++++++++++++
The answer is:
star A
input question: Bob is looking at a map with Mercator projection to help him with his geography class. He noticed that Ecuador is within fifteen degrees north or south of the equator, but Norway is farther north of the equator. Bob starts to see how a country's location on a map affects how they look. Which country's shape and size would increase on a map, Equador or Norway????
output answer: Norway
Dan and Fred were friends. they studied Biology at the same University. Fred studied bird reproduction this semester, while Dan studied fish reproduction. Which friend studied more about eggs that can be fertilized either inside or outside of the body?
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Answer: Dan
Q: Rob always confuses the terms climate and weather. He found it's better to compare them if he needs to learn more about their characteristics. To make things easier, he labeled the weather of his city as char A. Then he labeled the climate of this city as char B. Once finished with learning their characteristics, Rob focused on climate change issues. For that, he labeled the climate of present time as char C and climate just before industrial revolution as char D. Which one would be warmer, char C or char D?
A: char C
[Q]: Two friends met after 20 years and compared diets. Paul ate junk food daily and weighed 300 lbs and was 5'8'' in height. Mike was vegan and stayed healthy and thin. Which friend had less unused energy in food?
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[A]:
Mike