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The Earths Early Atmosphere (GCSE Chemistry)
The following is a GCSE Chemistry test covering 'The Earths Early Atmosphere' from the broader topic Chemistry Of The Atmosphere. The test is geared towards the AQA exam board style syllabus.Incorrect: 0
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Which process is mainly responsible for the large increase in atmospheric oxygen about 2.5 billion years ago?
Which of the following was a likely component of the very earliest atmosphere formed by outgassing and comet impacts?
Why did water vapour in the early atmosphere decrease over time?
How did much of the carbon dioxide in the early atmosphere become removed and stored?
What evidence in ancient rocks supports the idea that oxygen levels rose in Earth’s history?
What is the main reason early atmospheric composition was harmful to modern animals and plants?
On the early Earth, which gas would volcanic eruptions have released in large amounts?
What role did plate tectonics play in long-term atmospheric carbon cycling?
What effect did the rise of atmospheric oxygen have on iron in the oceans?
Which gas increased significantly only after photosynthetic organisms became abundant, rather than being abundant in the very earliest atmosphere?
What role did the formation of the ozone (O3) layer play in Earth’s atmospheric evolution?
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