The Total solution for NCERT class 6-12
Answer - 1 : - The huge blanket of air surrounding the Earth is called atmosphere.
Answer - 2 : - Nitrogen and oxygen make the bulk of the atmosphere.
Answer - 3 : - Carbon dioxide creates greenhouse effect in the atmosphere.
Answer - 4 : -
Answer - 5 : - Convectional rainfall, orographic rainfall and cyclonic rainfall are the three types of rainfall.
Answer - 6 : - Air pressure is defined as the pressure exerted by the weight of air on the Earth’s surface.
Answer - 7 : -
Matchthe following.
(i) Trade Winds
(a) Incoming solar energy
(ii) Loo
(b) Seasonal wind
(iii) Monsoon
(c) Horizontal movement of air
(iv) Wind
(d) Layer of ozone gas
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(e) Permanent wind
(f) Local wind
Answer - 8 : -
Answer - 9 : - Things remain damp and wet, and take longer time to dry when the atmosphere around them is damp and wet. Humidity is the amount of moisture or water vapour present in air at any moment in time. On a humid day, the air is full of water vapour. As the air gets warmer, its capacity to hold the water vapour increases. As a result, conditions become more and more humid. Hence, wet clothes take longer time to dry on a humid day.
Answer - 10 : - Insolation refers to the incoming solar radiations intercepted by the Earth. The amount of sunlight received by the regions close to the Equator is greater than the amount of sunlight received by the regions close to the Poles. This is because of the tilt of the Earth’s axis. As a result of this tilt, the incoming solar radiations cover a greater area at the Equator than at the Poles.