China used alternative fuels to generate electricity, while Mongolia burned lots of fossil fuels. There were frequent debates between the two countries on this matter. Which country caused less ocean acidification?
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Answer: China

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 less about the pancreas secreting insulin to stimulate the conversion of glucose into glycogen?
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Answer: Fred

John visited Sicily to see Mount Etna eruption. He noticed that magma there formed rhyolite. He was so excited to an eruption that when next time Kilauea eruption started in Hawaii, he went to see that. He found that unlike Etna Kilauea eruption formed basalt. Which eruption would have lower temperature, Etna or Kilauea?
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Answer:
Etna