UNIT 4 LESSON 9 – CHEMISTRY OF THE ATMOSPHERE

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8 Terms

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Earth's Early Atmosphere

The theory suggesting intense volcanic activity released gases forming the early atmosphere, potentially rich in CO2 and lacking O2, with nitrogen, methane, and ammonia present.

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Oxygen Production

Algae and plants produced oxygen through photosynthesis, gradually increasing oxygen levels in the atmosphere over billions of years.

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Carbon Dioxide Reduction

Algae, plants, sedimentary rocks, and fossil fuels contributed to reducing CO2 levels in the atmosphere.

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Greenhouse Gases

Water vapor, CO2, and CH4 maintain Earth's temperature by absorbing and radiating heat, leading to the greenhouse effect and global warming.

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Human Activities and Greenhouse Gases

Activities like driving, electricity consumption, livestock raising, and organic waste decay contribute to increased CO2 and CH4 levels in the atmosphere.

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Global Climate Change

Human-induced global warming may lead to climate change effects like species extinction, rising sea levels, migration, and decreased crop yields.

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Carbon Footprint

The total emissions of CO2 and greenhouse gases from a product, service, or event, which can be reduced by minimizing carbon dioxide and methane emissions through various means.

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Atmospheric Pollutants

Combustion of fuels releases pollutants like carbon dioxide, water vapor, carbon monoxide, oxides of nitrogen, sulfur dioxide, and particulates, impacting human health and the environment.