Atmosphere Geography : Top 100 GK MCQ With Free Exam Geography SET :-9

Q91. The absence of which among the following causes the temperature of the atmosphere to decrease with ascent along with decreasing density of air ?

I. Vegetation

II. Water

III. Carbon dioxide

IV. Oxygen

V. Nitrogen

(A) I and II
(B) III and IV
(C) II and III
(D) II and V

Answer: II and III

Q92. The innermost layer is the core with a radius of about __ km.

(A) 500
(B) 6500
(C) 9500
(D) 3500

Answer: 3500

Q93. When the wind is deflected due to the rotation of the Earth, it is called as __

(A) Geostropic wind
(B) Polar wind
(C) Westerlies
(D) Trade winds

Answer: Geostropic wind

Q94. Which are of the following is wrongly characterised ?

(A) Chinook- Canada – winter – warm
(B) Khamsin – Egypt – spring – hot
(C) Sirocco – Sahara – spring – hot
(D) Mistral – Rhone Valley – summer – cold

Answer: Mistral – Rhone Valley – summer – cold

Q95. Which of these statements are correct regarding the atmosphere of the earth:

1. It is enveloping the earth because of gravity.

2. Its density decreases with increasing height from the surface of the earth.

3. Its characteristic composition is same throughout its height.

4. Amount of pressure it exerts on earth’s surface at sea level is called one atm sphere.

(A) 1 and 4
(B) 2 and 4
(C) 2, 3 and 4
(D) 1, 2 and 4

Answer: 1, 2 and 4

Q96. In the northern hemisphere, currents are deflected to their right due to __

(A) Centrifugal force
(B) Coriolis force
(C) Cyclonic storms
(D) None of these

Answer: Coriolis force

Q97. Very strong and cold icy winds that blow in the Polar regions are called __

(A) Typhoons
(B) Tornadoes
(C) Blizzards
(D) Polar winds

Answer: Blizzards

Q98. Which of the following statements characterize the anticyclones ?

1. Anticyclones are low pressure systems.

2. They are characterized by divergent wind circulation.

3. They are indicative of dry weather conditions.

Select the correct answer using the codes given below

(A) 2 and 3
(B) 1 and 3
(C) 1, 2 and 3
(D) 1 only

Answer: 2 and 3

Q99. When the relative humidity is 50% and air temperature is 30°C, a cooling of air mass __

(A) Raises the absolute humidity
(B) Produces no change in relative humidity
(C) Decreases the relative humidity
(D) Increases the relative humidity

Answer: Decreases the relative humidity

Q100. Frontal rain is caused by __

(A) Convection currents
(B) Winds from sea
(C) Cyclonic activity
(D) Condensation of water evaporated from mountains

Answer: Cyclonic activity