Human Activities and Climate Change Flashcard

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What are greenhouse gases?

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Greenhouse gases are gases that trap heat in the atmosphere, preventing it from escaping into space. Examples include carbon dioxide, methane, and nitrous oxide.

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What is the greenhouse effect?

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The greenhouse effect is the process by which greenhouse gases absorb and emit infrared radiation, warming the Earth's atmosphere.

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What is global warming?

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Global warming refers to the gradual increase in Earth's average surface temperature due to rising levels of greenhouse gases.

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How do human activities contribute to climate change?

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Human activities, such as burning fossil fuels and deforestation, increase the concentration of greenhouse gases in the atmosphere, leading to climate change.

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What is climate change?

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Climate change refers to significant changes in global temperatures and weather patterns over time, largely driven by human activities.

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What are fossil fuels?

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Fossil fuels are natural substances formed from the remains of ancient plants and animals, used as energy sources, including coal, oil, and natural gas.

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What is the role of trees in combating climate change?

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Trees absorb carbon dioxide, a major greenhouse gas, during photosynthesis, helping to reduce the amount of CO2 in the atmosphere.

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What happens when fossil fuels are burned?

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When fossil fuels are burned, they release carbon dioxide and other greenhouse gases into the atmosphere, contributing to global warming.

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What is the impact of increased temperatures on ecosystems?

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Increased temperatures can disrupt ecosystems, leading to species extinction, altered habitats, and changes in biodiversity.

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What is the relationship between photosynthesis and climate change?

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Photosynthesis helps reduce carbon dioxide levels in the atmosphere, so a decrease in photosynthesis can lead to higher CO2 levels and contribute to climate change.