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Nitrogen has, since plants and animals have existed, been the majority of gases in our atmosphere. Carbon Dioxide; however, has been increasing in our atmosphere since the industrial revolution. The causes are automobiles, coal-burning power plants and other carbon-emitting activities.

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4mo ago

Earth's atmosphere is rich in nitrogen because it is a stable molecule that is not easily broken down by biological or geological processes. Carbon dioxide is present due to natural processes like respiration, volcanic activity, and the burning of fossil fuels, which release it into the atmosphere. Human activities, such as deforestation and the burning of fossil fuels, have also contributed to the increase in carbon dioxide levels.

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Q: Why is Earth's atmosphere rich in nitrogen and carbon dioxide today?
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