Air and Atmosphere Class 7. We covered all the Air and Atmosphere Class 7 in this post for free so that you can practice well for the exam.
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Air and Atmosphere Class 7 Objective for Students
The four layers of the atmosphere are 1. Ionosphere 2. Mesosphere 3. Stratosphere 4. Troposphere Their correct ascending order in terms of height is Code
(A) 1, 2, 3, 4
(B) 2, 1, 4, 3
(C) 4, 3, 2, 1
(D) 3, 4, 1, 2
Option c – 4, 3, 2, 1
Arrange the following atmospheric zones in terms of the distance from the Earth’s surface in increasing order and select the correct answer from the code given below. 1. Thermosphere 2. Troposphere 3. Stratosphere 4. Mesosphere Code
(A) 1, 3, 4, 2
(B) 2, 3, 1, 4
(C) 3, 4, 2, 1
(D) 2, 3, 4, 1
Option d – 2, 3, 4, 1
Which of the following is correct matching the layer of atmosphere and its characteristics? Troposphere Weather Phenomena 2. Stratosphere – Ozone layer 3. Ionosphere – Radio waves reflected Earth’s surface 4. Mesosphere – Aurorae Code
(A) 1, 2, 3 and 4
(B) Only 1, 2 and 4
(C) Only 1, 2 and 3
(D) Only 2 and 3
Option c – Only 1, 2 and 3
The height of the ozone layer above the surface of the Earth is
(A) 15-20 km
(B) 40-50 km
(C) 70-80 km
(D) 110-120 km
Option a – 15-20 km
Which one of the following layers of the atmosphere is responsible for the deflection of radio waves?
(A) Troposphere
(B) Stratosphere
(C) Mesosphere
(D) Ionosphere
Option d – Ionosphere
Which layer of the atmosphere is responsible for Aurora Borealis?
(A) Troposphere
(B) Thermosphere
(C) Ionosphere
(D) Exosphere
Option c – Ionosphere
Wireless communication is reflected on Earth’s surface by
(A) Troposphere
(B) Stratosphere
(C) Ionosphere
(D) Exosphere
Option c – Ionosphere
Which layer of the Atmosphere is used for Telecommunication?
(A) Troposphere
(B) Thermosphere
(C) Stratosphere
(D) Ionosphere
Option d – Ionosphere
In which atmospheric layer are communication satellites located?
(A) Exosphere
(B) Stratosphere
(C) Ionosphere
(D) Troposphere
Option a – Exosphere
We covered all the air and atmosphere class 7 above in this post for free so that you can practice well for the exam.
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