Problem: Given the question: Germany took steps to increase the use of renewable natural resources. Today, they are the leader in using renewable resources. Most of their energy requirements are met with renewable natural resources. But it's not the case with nearby Russia. Russia has been heavily depended on non-renewable natural resources. With the discovery of huge gas and oil reserves there is no sign that situation would change in Russia any time soon. Would Russia contribute more or less to greenhouse gases than Germany?
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The answer is:
more

Problem: Given the question: Two countries are situated on the shores of the same sea. Turkey is a nation of farmers, they use conventional agricultural methods to produce food, including lots of fertilizers. Greece's economy is mostly based on tourism. Which country causes more marine pollution?
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The answer is:
Turkey

Problem: Given the question: 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 female fish releasing very high numbers of eggs?
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The answer is:
Dan