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Q.How does the atmosphere act as a blanket?
The atmosphere acts as a blanket by performing the following functions:
(a) It keeps the average temperature of the Earth fairly constant during day time and even during the course of whole year.
(b) It prevents a sudden increase in the temperature during day time.
(c) It slows down the escape of heat from the surface of the Earth into outer space during night time.
Question: a) How does temperature changes in the stratosphere? Give a physical explanation and illustrate your answer using a diagram. b) Write a short note on ozone in the
Interaction in the earth ecosystem: In this comparatively smaller section, we will give you the idea, that the earth as a whole is an ecosystem. Whatever you have learnt till
#question.what is the importance of pritozoa to humans?.
Explain Specific Defence Mechanism In the section on white blood cells, we learnt that whenever a germ or infection enters our body, the WBCs snap to attention and destroy the
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Q.What is the greenhouse effect? Some gases like carbon dioxide, methane, nitrous oxide prevent the escape of heat from the Earth's surface by trapping it. This increases the av
Applications of Optical Fibres: Fibre optics finds many applications in areas like medicine and communications which we will briefly describe. We will also discuss its advht
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