MCQ on Atmosphere

Question 1. The correct sequence of different layers of the atmosphere from the surface of the Earth upwards is________.

(A) Stratosphere, Troposphere, Mesosphere, Ionosphere

(B) Troposphere, Stratosphere, Mesosphere, Ionosphere

(C) Stratosphere, Troposphere, Ionosphere, Mesosphere

(D) Troposphere, Stratosphere, Ionosphere, Mesosphere

Question 2. Most weather activity occurs in which atmospheric layer?

(A) Exosphere

(B) Troposphere

(C) Ionosphere

(D) Ozonosphere

Question 3. The atmosphere is a mixture of several gases. Near the Earth surface it contains mainly_________.

(A) Ethane and oxygen

(B) Oxygen and carbon dioxide

(C) Nitrogen and carbon dioxide

(D) Nitrogen and oxygen

Question 4. Which gas has maximum percentage in atmosphere?

(A) Hydrogen

(B) Oxygen

(C) Nitrogen

(D) Carbon

Question 5.The stratosphere is said to be ideal for flying jet aircrafts. This is because________.

(A) The absence of the clouds and other weather phenomena

(B) This layer is out of the firing range of antiaircraft guns

(C) The temperature is constant and ideal for aircraft engine efficiency

(D)This layer is rich in ozone which reduces fuel consumption

Question 6.The ozone layer lies in the________.

(A) Photosphere

(B) Stratosphere

(C) Tropopause

(D) Troposphere

Question 7.Which of the following protects life on Earth from the harmful radiations of the Sun?

(A) Mist

(B) Ozone layer

(C) Ionosphere

(D) Troposphere

Question 8.Function of ozone layer in stratosphere is_________.

(A) To prevent ultra-violet radiation effect on ground

(B) To avoid failure of monsoons

(C) To reduce the frequency of Earthquake

(D) To stabilize the global temperature

Question 9.Ozone layer refers to________.

(A) The layer of atmosphere of 15-20 km above the surface of Earth

(B) Modern invention done on the planet saturn

(C) The layer about 10-20 km below the surface of Earth

(D) The atmospheric condition of Antarctica

Question 10.The height of ozone layer above the surface of Earth is_________.

(A) 110-120 km

(B) 70-80 km

(C) 40-50 km

(D) 15-20 km

Question 11.Which one of the following layers of the atmosphere is responsible for the deflection of radio waves?

(A) Ionosphere

(B) Mesosphere

(C) Stratosphere

(D) Troposphere

Question 12. Which layer of atmosphere is responsible for Aurora Borealis?

(A) Exosphere

(B) Ionosphere

(C) Thermosphere

(D) Troposphere

Question 13.Wireless communication is reflected to Earth’s surface by______.

(A) Exosphere

(B) Ionosphere

(C) Stratosphere

(D) Troposphere

Question 14. Which layer of Atmosphere is used for Telecommunication?

(A) Ionosphere

(B) Stratosphere

(C) Thermosphere

(D) Troposphere

Question 15. In which atmospheric layer are communication satellites located?

(A) Troposphere

(B) Ionosphere

(C) Stratosphere

(D) Exosphere

Question 16.The four layers of the atmosphere are

1.  Ionosphere
2.  Mesosphere
3.  Stratosphere
4.  Troposphere

Their correct ascending order in terms of height is

(A) 3, 4, 1, 2

(B) 4, 3, 2, 1

(C) 2, 1, 4, 3

(D) 1, 2, 3, 4

Question 17.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

(A) 2, 3, 4, 1

(B) 3, 4, 2, 1

(C) 2, 3, 1, 4

(D) 1, 3, 4, 2

Question 18.Which of the following are correct in matching the layer of atmosphere and its characteristics?

1.  Troposphere – Weather Phenomena
2.  Stratosphere – Ozone layer
3.  Ionosphere – Radio waves reflected to Earth’s surface
4.  Mesosphere – Aurorae

(A)2 and 3

(B)1, 2 and 3

(C)1, 2 and 4

(D)1, 2, 3 and 4