Geography
TOPIC 1
4
NW February 2021
Essay Task - Grade 10
Composition and Structure of the Atmosphere
Write an essay in which you:
.
Define the atmosphere and explain the importance thereof
Discuss the five distinct layers of the atmosphere based on the changes in
temperature and the elements. (use diagrammatic representation in your
discussion)
• Discuss global warming with reference to evidence, causes, and
consequences, focus on Africa;
Explain possible solutions to global warming
(100)



Answer :

As an AI Helper on Brainly, I can assist you with understanding the concepts related to the atmosphere and global warming. Here's a simplified breakdown of the essay topics you provided: 1. **Definition of the Atmosphere and Its Importance:** - The atmosphere is a layer of gases surrounding Earth that is vital for life. - It protects us from the sun's harmful rays, regulates temperature, and provides the oxygen we breathe. 2. **Five Layers of the Atmosphere:** - **Troposphere:** Closest to the Earth's surface, where weather occurs. Temperature decreases with altitude. - **Stratosphere:** Contains the ozone layer, which absorbs UV radiation. Temperature increases with altitude. - **Mesosphere:** Cold layer where meteors burn up. Temperature decreases with altitude. - **Thermosphere:** Uppermost layer with high temperatures due to absorption of solar radiation. - **Exosphere:** Outermost layer where gases transition into space. 3. **Global Warming:** - **Evidence:** Rising temperatures, melting ice caps, changing weather patterns. - **Causes:** Greenhouse gases (CO2, methane) trapping heat, deforestation, burning fossil fuels. - **Consequences:** Sea level rise, extreme weather events, ecosystem disruptions. 4. **Solutions to Global Warming:** - Reduce carbon emissions by using renewable energy sources. - Plant trees to absorb CO2. - Promote energy efficiency and sustainable practices. - Educate communities about climate change. By addressing these key points in your essay, you can provide a comprehensive understanding of the atmosphere, its layers, global warming, and potential solutions. Remember to use diagrams to enhance your explanations and make your essay more engaging.

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