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| 1. |
Describe the significance of the atmosphere |
| Answer» \tThe atmosphere protects the Earth from the solar radiation. It filters the harmful ultraviolet rays of the Sun.\tThe atmosphere traps the required heat of the Sun and allows the rest to escape into space, thus maintaining a moderate temperature on the Earth. This ensures the existence of various life forms.\tDue to the friction created in the atmosphere, many meteors and meteorites get burned in the atmosphere, which would have otherwise fallen on to the surface of the Earth.\tBecause of the difference in the temperature of the atmosphere, air gets circulated causing winds and the rains. All forms of life depend on these phenomena.\xa0\tSoil absorbs nitrogen and oxygen which is present in the atmosphere. This helps plants to grow.\tThe water cycle takes place due to the processes of evaporation, condensation and precipitation. Water vapour, which is a part of the atmosphere, condenses to form clouds resulting in rainfall. | |