Next to it there is the stratosphere, where airplanes fly. Indispensable for Life of Earth. class 7 social science 2 See answers Arslankincsem Arslankincsem An atmosphere is the thin blanket of air that surrounds the surface of the Earth. Answer: Importance of atmosphere 1. Above this surface to about 7 miles above there is the troposphere. Let’s consider some of the reasons we are lucky to have an atmosphere. Without the atmosphere, Earth would look a lot more like the Moon. NCERT Solutions For Class 7 Geography Social Science Chapter 4 Air. Teachers’ responses to children’s behavior will help to set the tone of the class environment. The Questions and Answers of describe the importance of lithosphere, hydrosphere and atmosphere to humans Related: NCERT Solutions - Environment? Most jets fly in this layer. It … The temperature goes up with altitude. Plant life. It prevents the harmful ultra-violet rays of the Sun from reaching the Earth’s surface. The atmosphere prevents the Earth from becoming too hot during the day or too cold during the night. First, we need to understand the other layers of the atmosphere starting from the Earth’s surface. By removing carbon dioxide from atmosphere, the forests stop the level of carbon dioxide in the atmosphere from rising too high. ... Troposphere: This is the most important layer of the atmosphere with an average height of 13 km from the earth. The importance of atmosphere of the earth are:- => The presence of the atmosphere plays a significant role in the water cycle. The protective ozone is at the bottom of the stratosphere (It protects us from the ultraviolet radiation of the sun.) Atmosphere is the envelope of gas which surrounds any celestial body. Vapor evaporates out of oceans, condenses as it cools and falls as rain, providing life-giving moisture to otherwise dry areas of the continents. 9. 7. Question 1. * * * The second layer of the atmosphere is the… The stratosphere goes from 16km to 50 km. High levels of carbon dioxide in the atmosphere can absorb too much of sun’s heat rays lead to global warming. This is very important because carbon dioxide is a greenhouse gas which absorbs heat rays. It facilitates the formation of clouds which remains suspended until they are heavy enough to pour down on the earth as rain,hail or snow. Another really important thing that the atmosphere does is to protect us from objects coming toward the earth from outer space. 3. This layer extends from 7 miles to 20 miles above the surface. NCERT 7th Class (CBSE) Social Science: The Atmosphere - Short / Long Answers, Multiple choice questions for NCERT 7th Class (CBSE) Social Science: The Atmosphere - Green plants give out oxygen during photosynthesis. Closely related to temperature regulation, the atmosphere also gives us weather. (i) What is atmosphere? The atmosphere also serves an important purpose as a medium for the movement of water. The atmosphere is also very important for plants because it contains a small amount of carbon dioxide. Earth’s atmosphere is about 300 miles thick. It protects us from the harmful radiations of the Earth. 2. Explain the main features of the atmosphere. Answer the following questions briefly. Class 7 Geography Solved Q&A Environment Inside Our Earth Our Changing Earth Air Water Natural Vegetation Human Environment Settlement, Transport and Communication Human Environment Interactions The tropical and the subtropical region Life In The Temperate Grass Land Life In The Desert Much of what makes Earth exceptional depends on the atmosphere. are solved by group of students and teacher of Class 7, which is also the largest student community of Class 7. Look out below! 8. Layers of the Atmosphere. Q14: List three importance of atmosphere. 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