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Sagot :
Answer:
The correct answer would be D. absorption and radiation of energy in the atmosphere.
Green house effect refers to the process by which heat or radiation from the sun as well as those radiated from the surface of the earth are trapped in the atmosphere.
It gradually results in increase of the temperature of the earth.
Due to increase in greenhouse gases such as carbon dioxide, methane et cetera the average temperature of the earth keeps on increasing and thus results in global warming.
The warming up of Earth's atmosphere due to absorption and radiation of energy is called the greenhouse effect.
Further Explanation:
The process that causes the atmosphere of the Earth to trap the heat released by the Sun is called the greenhouse effect. During this process, the Earth becomes warmer as compared to the absence of the atmosphere. It is a natural process in which some of the Sun's energy that reaches the atmosphere is reflected. In contrast, the rest of the energy is reabsorbed and irradiated by the greenhouse gases. The various greenhouse gases are methane, carbon dioxide, water vapor, and nitrous oxide. This absorbed energy causes heating up of the atmosphere and the Earth's surface. Life on Earth is possible due to this effect as it maintains the temperature at 33 degrees Celsius warmer.
Certain human activities are responsible for enhances the greenhouse gas concentration, such as clearing of agricultural land and the burning of fossil fuel. This increased greenhouse effect leads to further warming up of the Earth. The steps involved in the greenhouse effect and its enhanced effect are as follows:
- Solar energy falls on the atmosphere of the Earth, and some of the radiations are reflected.
- The oceans and land absorb the remaining energy and heat the Earth.
- The heat radiates into space from the Earth.
- Some heat is entrapped by the greenhouse gases which help sustain life on Earth.
- The amount of greenhouse gases increases in the atmosphere as human activities like clearing land and fossil fuel burning increases.
- The heat thus produced raises the temperature further.
The excess absorption of carbon dioxide by the ocean makes the water more acidic, which is not good for aquatic life and is called ocean acidification.
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Answer Details:
Grade: High School
Chapter: Greenhouse Effect
Subject: Biology
Keywords:
Greenhouse effect, greenhouse gases, atmosphere, Earth's surface, carbon dioxide, nitrous oxide, methane, water vapor, solar radiation, clearing of land, burning of fossil fuels, ocean acidification.
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