Identify the labelled parts of the atmosphere in the given diagram.

(i) Thermosphere (ii) Ionosphere (iii) Troposphere (iv) Karman line

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(i) Troposphere (ii) Ozone layer (iii) Mesosphere (iv) Thermosphere

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(i) Karman line (ii) Mesosphere (iii) Troposphere (iv) Thermosphere

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(i) Thermosphere (ii) Mesosphere (iii) Troposphere (iv) Tropopause

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Solution

The correct option is B (i) Troposphere (ii) Ozone layer (iii) Mesosphere (iv) Thermosphere
The lowest and thickest part of the atmosphere is the Troposphere, which extends up to about 12 km from the surface of the Earth. This layer experiences climatic changes and is also used for commercial aviation. The Tropopause marks the boundary of the Troposphere beyond which lies the Stratosphere. It ranges from 12 km to about 55 km and is house to the ozone layer. The Mesosphere lies above the Stratosphere from around 50 km to 85 km and is the coldest part of the atmosphere. Next, lies the Thermosphere extending from about 80 km to 800-1000 km. At around 100 km lies the Karman line, which marks the boundary between atmosphere and outer space. Beyond this line lies the Exosphere. This contains most of the satellites orbiting the Earth.

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Similar questions

Column I	Column II
(A) Troposphere	(i) Prevents UV rays coming to earth
(B) Stratosphere	(ii) Ionization of gases
(C) Mesosphere	(iii) Maintenance of heat balance
(D) Thermosphere	(iv) Non-propagation of sound waves

List-I	List-II
(a) $10 km$ height over earth's surface	(i) Thermosphere
(b) $70 km$ height over earth's surface	(ii) Mesosphere
(c) $180 km$ height over earth's surface	(iii) stratosphere
(d) $270 km$ height over earth's surface	(iv) Troposphere

Tick the correct answer.

(i) Which of the following gases protects us from harmful sun rays?

(a) Carbon dioxide

(b) Nitrogen

(ii) The most important layer of the atmosphere is

(a) Troposphere

(b) Thermosphere

(iii) Which of the following layers of the atmosphere is free from clouds?

(a) Troposphere

(b) Stratosphere

(iv) As we go up the layers of the atmosphere, the pressure

(a) Increases

(b) Decreases

(v) When precipitation comes down to the Earth in the liquid form, it is called

(a) Cloud

(b) Rain

LIST - I	LIST - II
A. Prevents UV radiation	1. Mesosphere
B. No propagation of sound waves	2. Thermosphere
C. Maintenance of the heat balance	3. Stratosphere
D. All gases are ionised	4. Troposphere
	5. Lithosphere

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