Atmosphere Unit 521

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What is reforestation?

Back

Reforestation is the process of planting trees in an area where the forest has been depleted or destroyed, helping to restore the ecosystem and mitigate climate change.

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What is a heat island?

Back

A heat island is an urban area that experiences higher temperatures than its rural surroundings due to human activities and the concentration of buildings and infrastructure.

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How does climate differ from weather?

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Climate is the long-term average of weather patterns in a specific area, while weather refers to the short-term atmospheric conditions at a particular time.

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What causes urban heat islands to retain heat at night?

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Urban heat islands retain heat at night primarily because materials like concrete and asphalt absorb heat during the day and release it slowly at night.

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What is the impact of deforestation on atmospheric carbon dioxide levels?

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Deforestation leads to increased atmospheric carbon dioxide levels because trees absorb CO2; when they are removed, less CO2 is absorbed.

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What are chlorofluorocarbons (CFCs)?

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Chlorofluorocarbons (CFCs) are man-made compounds that were commonly used in refrigeration and aerosol propellants, known for depleting the ozone layer.

Front

What is the greenhouse effect?

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The greenhouse effect is the process by which certain gases in Earth's atmosphere trap heat, keeping the planet warm enough to support life.

Front

What role do forests play in regulating climate?

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Forests help regulate climate by absorbing carbon dioxide, releasing oxygen, and influencing local weather patterns through transpiration.

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What is the significance of urban planning in mitigating heat islands?

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Urban planning can mitigate heat islands by incorporating green spaces, reflective materials, and sustainable building practices to reduce heat absorption.

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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 greenhouse gas emissions, leading to global warming and climate change.