input question: John was studying about the history of Sahara desert. He was amazed to find that ten thousand years ago there were plenty of rainfall in that region. He labeled that era as era A. Then he found that rainfall deceased in the region about eight thousand years ago. He labeled that era as era B. He was wondering how that change in rainfall might have helped emerge the Egyptian civilization. In which era less rocks would have chemical reactions, era A or era B????
output answer: era B
Two sister cities used different methods to produce electricity. London used fossil fuels, while Edmonton use entirely hydro power to generate energy. Which city causes less air pollution?
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Answer: Edmonton
Q: Pete and Mike were two brothers. Pete had no health problems, while Mike inherited the sickle cell trait. Mike had adjacent health problems. Which brother inherited a genetic disease from one of his parents?
A: Mike
Question: Tim and Fred were two students. Tim studied about negative feedback and the pancreas, while Fred studied about the stomach and the jejunum. Which student read more about blood glucose levels?
Answer: Tim
[Q]: Two neighboring towns had different demographics. Hill town had younger inhabitants, most of them in their 30's and 40's. Lake town was inhabited by elderly people, most of them above 65 years of age. Which town had more people that freed up time for their hobbies?
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[A]: Lake
Problem: Given the question: The Danube and Volga rivers both form large deltas, but the Danube river delta is larger and grows faster every year. Which river experiences a more significant decrease in flow velocity when it reaches the sea?
++++++++++++++++++++++++++++++++
The answer is:
Danube