Question

what is green house effect? write any one advantage of it. ​

Answer 1

The greenhouse effect helps to maintain a certain temperature level on Earth's surface, making it habitable for the living beings (humans, animals, plants and other organisms). Thanks to the greenhouse gases, the earth is warm enough to sustain life.

Answer 2

Answer:

Greenhouse effect is the mechanism by which thermal radiation from earth’s surface is reabsorbed by greenhouse gases and redirected in all directions. Some of the major green house gases are water vapour, carbon dioxide, methane and ozone. Most of these gases are poor absorbers of solar radiation, therefore allowing much of the solar energy to pass through the earth’s atmosphere thereby warming up the earth’s surface. On the other hand, a proportion of the outgoing energy is absorbed by these gases, which is then redirected to earth’s surface therefore further warming up the atmosphere. This is what is called a greenhouse effect. For ages there has been a delicate balance between how much solar energy is redirected to earth and how much is reflected back to the space. With the increased burning of fossil fuels, the percentage of carbon dioxide in the atmosphere has significantly increased thereby adding to the greenhouse effect.

There are 5 major greenhouse gases that influence the greenhouse effect. They include:

1. Carbon Dioxide (CO2)
2. Methane (CH4)
3. Nitrous Oxide (N2O)
4. Ozone (O3)
5. Water vapor (H2O)

Advantages :-

1. The greenhouse effect helps to maintain a certain temperature level on Earth’s surface, making it habitable for the living beings (humans, animals, plants and other organisms). Thanks to the greenhouse gases, the earth is warm enough to sustain life. Otherwise, the heat would have escaped the atmosphere, making earth’s surface way cooler than what it is.
2. The greenhouse gases help block the harmful solar radiation from reaching planet’s surface. These gases work like a filter and bounce back most of the unwanted and damaging energy into space.
3. Ozone, which is one of the crucial greenhouse gases, absorbs the harmful ultra-violet (UV) rays of the sun. If there wasn’t any Ozone layer in our atmosphere, the UV rays could reach the surface directly and affect the life on earth on a massive scale.
4. The greenhouse effect has allowed the planet to maintain its water level on the surface. Thanks to the moderate temperature, the planet’s ice has not been melted completely, and the polar ice caps are restricted to the polar regions of the planet.

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