Answer the question in maximum 100 words. This question carries 06 marks. [MPPSC 2019]
What are green house gases? Explain
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What Are Greenhouse Gases?
Greenhouse gases (GHGs) are gases in the Earth’s atmosphere that trap heat. They play a crucial role in keeping our planet warm.
How They Work
Main Greenhouse Gases
Importance
Without these gases, Earth would be too cold for life. However, human activities have increased their levels, leading to global warming and climate change.
Gases that trap heat in the atmosphere are called greenhouse gases. The atmosphere that raise the surface temperature of planets such as the Earth distinguishes them from other gases is that they absorb the wavelengths of radiation that a planet emits, resulting in the greenhouse effect.The Earth is warmed by sunlight, causing its surface to radiate heat, which is then mostly absorbed by greenhouse gases. Without greenhouse gases in therather than the present average of 15 °C (59 °F). atmosphere, the average temperature of Earth’s surface would be about −18 °C (0 °F),
Carbon dioxide (CO2): Carbon dioxide enters the atmosphere through burning fossil fuels (coal, natural gas, and oil), solid waste, trees and other biological materials.Carbon dioxide is removed from the atmosphere it is absorbed by the plants as a part of biological carbon cycle.
Methane (CH4): Methane is emitted during the production and transport of coal, natural gas, and oil.
Nitrous oxide (N2O): Nitrous oxide is emitted during agricultural, land use, and industrial activities; combustion of fossil fuels and solid waste; as well as during treatment of wastewater.
Each gas’s effect on climate change depends on three main factors.
Human activities increase the carbon dioxide by over 50%.It cause global warming.