Earth & Atmospheric Science Quiz
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5 questions, one answer each
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1. What produced the Earth's early atmosphere?
- A. Photosynthesis by plants
- B. Volcanic activity
- C. Human industrial activity
- D. Meteorite impacts only
2. Which gas was present in only small amounts in the Earth's early atmosphere but makes up about 20% of today's atmosphere?
- A. Carbon dioxide
- B. Nitrogen
- C. Oxygen
- D. Water vapour
3. What is the correct chemical test for oxygen gas?
- A. A lit splint makes a squeaky pop
- B. Limewater turns cloudy
- C. A glowing splint relights
- D. Damp litmus paper turns red
4. How did the formation of the oceans reduce atmospheric carbon dioxide?
- A. CO2 reacted directly with nitrogen gas
- B. CO2 dissolved into the ocean water
- C. CO2 was blown away by volcanic winds
- D. CO2 turned into oxygen
5. A student notes that rising atmospheric CO2 correlates with rising fossil fuel use and rising global temperature, but a colleague says this doesn't prove humans caused climate change. Which response best evaluates this?
- A. The colleague is wrong because correlation always proves causation
- B. The correlation is strong evidence, but uncertainties in measurement location and historical data mean it should be considered alongside other supporting evidence
- C. There is no reliable evidence at all for human-caused climate change
- D. Only the exact CO2 percentage matters, not the trend