Problem: Given the question: Spain and Italy participated in a global warming global forum this year. it turns out that Spain uses lots of fossil fuel and natural gas for their economy, while Italy relies on ecological alternatives. Which country released more carbon dioxide into the atmosphere?
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The answer is:
Spain

Problem: Given the question: Two friends were in college. Hank studied plate tectonics, while his buddy Alex studied Earth's atmosphere. They were both very fascinated by the subjects. Which student learned more about mantle convection?
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The answer is:
Hank

Problem: Given the question: Last week, John visited the national park near his city. He saw many flowers. His guide explained him that there are two categories of flowers, category A and category B. Category A flowers spread pollen via wind, and category B flowers spread pollen via animals. Would category A flower have more or less colorful petals than category B flower?
++++++++++++++++++++++++++++++++
The answer is:
less