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The Greenhouse Effect
The document discusses the greenhouse effect, where greenhouse gases like carbon dioxide, methane, and chlorofluorocarbons in the atmosphere trap heat radiating from the Earth, causing the planet to warm. These gases prevent infrared radiation emitted from the Earth's surface from escaping into space, similarly to how a greenhouse retains heat. As a result of increased greenhouse gases from human activities such as burning fossil fuels and deforestation, the Earth's average temperature is rising in global warming. Effects of the greenhouse effect include melting glaciers and rising sea levels, and steps to reduce it include using alternative energy sources and replanting trees.
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Explains how solar energy warms Earth and the role of greenhouse gases in trapping heat.
Discusses human actions like fossil fuel burning and deforestation intensifying the greenhouse effect and leading to global warming.
Highlights impacts such as polar ice melting, rising sea levels, intense rains, and climate changes.
Suggests measures to reduce greenhouse gases, including using renewable energy and reforestation.
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The Greenhouse Effect
- 2. Energy from thesun reaches the earth through radiation. As the earth is warmed, heat in the form of infrared radiation is radiated back into space. However, much of this radiation is prevented escaping into spaces by greenhouse gases. THE GREENHOUSE EFFECT :D
- 3. Greenhouse gases include: - Carbon Dioxide (CO2). - Methane (CH4). - Chlorofluorocarbons(CFCs). - Nitrous Oxide (N2O).
- 4. As a result,the infrared radiation is radiated back to the Earth’s surface, warming the earth further. The phenomenon is known as the greenhouse effect. It’s similar to a greenhouse used in farming in countries which experience temperate climates.
- 5. The glass ofa greenhouse allows light to enter but retards the loss of heat. The heat is used to keep the soil and air warm in the green house. The greenhouse effect caused by : - human activities. - burning of fossil fuels. - deforestation.
- 6. The increasing amountof greenhouse gases increases the greenhouse effect causing more heat to be trapped in the atmosphere. The Earth’s average temperature increases is known as “global warming”.
- 7. Effects Of TheGreenhouse Effect :D Melting of polar ice and glaciers causing a rise in sea level. Intense rain in some regions. Leads to greater climate changes like strong winds & heavier rainfall. Desert areas increase in size.
- 8. Steps To ReduceThe Greenhouse Effect :D Reduce the burning fossil fuels. Reduce the deforestation. Practice replanting the trees. Reduce or stop open burning. Develop other sources of energy such as solar, wind and geothermal energy.