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What is the greenhouse effect?

Back

The greenhouse effect is the process by which certain gases in Earth's atmosphere trap heat, preventing it from escaping into space, thus warming the planet.

Front

What are greenhouse gases?

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Greenhouse gases are gases that contribute to the greenhouse effect by absorbing infrared radiation. Key examples include carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (NO₂).

Front

What is methane (CH₄) and how is it produced?

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Methane (CH₄) is a potent greenhouse gas produced by the decay of organic waste, livestock digestion, and certain agricultural practices.

Front

How do greenhouse gases affect Earth's temperature?

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Greenhouse gases act as a thermal blanket for the Earth, absorbing heat and warming the surface, which can lead to climate change.

Front

What trend was observed in land and ocean temperatures from 1880 to 2000?

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Land and ocean temperatures steadily increased from 1880 to 2000, indicating global warming.

Front

What do tree rings indicate about past climate conditions?

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Tree rings can indicate past climate conditions; wide rings suggest favorable growth conditions, while thin rings indicate stress, such as drought or low temperatures.

Front

What can scars in tree rings signify?

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Scars in tree rings can signify events such as fire, disease, or insect damage, reflecting environmental stressors.

Front

What is the significance of wide tree rings?

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Wide tree rings typically indicate years of favorable growth conditions, such as adequate rainfall and warm temperatures.

Front

What do thin tree rings indicate?

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Thin tree rings indicate years of stress, often due to lower temperatures or drought conditions.

Front

What role does carbon dioxide (CO₂) play in the greenhouse effect?

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Carbon dioxide (CO₂) is a major greenhouse gas that traps heat in the atmosphere, contributing to the greenhouse effect and global warming.