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showers because of its high temperature. Temperature in this layer rises very {, , increasing height., , Exosphere, , It is the uppermost layer of the a, upto 1,600 km. It does not have a, like hydrogen and helium float into, , tmosphere and lies just above the ionosphere. It ext j, limit. Gravitational pull is minimum in this layer. Light g, the space from this layer., , IMPORTANCE OF ATMOSPHERE, , Atmosphere is important for both plants and animals as it has life s, , like oxygen and carbon dioxide., , * Weather phenomenon takes place on the Earth due to dust particles, vapour present in the atmosphere., , e |talso controls the temperature of the Earth., , * The ozone layer in the atmosphere protects us from harmful ultraviolet radiat, , e Sound waves travel through the atmosphere., , Quick Revision - |, Answer the following questions:, 1. Earth would not have been able to sustain life if it was devoid of, , 2. Green plants give out oxygen while making their food in a process called, 3. What is global warming?, , , , 4. Which layer of atmosphere facilitates satellite communication?, , , , 5. Sound waves cannot travel through atmosphere. | i, . Is this statemen’, false? —, , WEATHER AND CLIMATE, Weather refers to the condition of, atmosphere at a given place over a short, period of time. The average weather, condition of a place for a longer period, of time is called the clinietes:, , M WED DOTS sre) Allow. “i, , nN news ch y, ities NCS: They, , Uiex Silace,, (= K€a8Vision, forecast the, , 2022/1/11 12:56