Climatology MCQ. We covered all the Climatology MCQ in this post for free so that you can practice well for the exam.
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MCQ on Climatology for Students
(a) I and II
(b) I and III
(c) II and III
(d) I, II and III
Option c – II and III
Assertion (A) In the stratosphere the temperature increase with altitude results in a layering effect. Reason (R) It creates a global ‘inversion layer’, and increases vertical convection. Codes
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true, but R is not the correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Option c – A is true, but R is false
Which one of the following statements is true about tropopause?
(a) It is formed due to meteoric dust particles.
(b) It is about 5-10 km thick.
(c) It is a zone of mixing.
(d) Its average height is about 8 km over the equator.
Option c – It is a zone of mixing
Which one of the following zones of the atmosphere is rich in ozone gas?
(a) Mesosphere
(b) Troposphere
(c) Stratosphere
(d) lonosphere
Option c – Stratosphere
Most ozone gas (about 90%) is located in the atmospheric layer of the
(a) ionosphere
(b) troposphere
(c) stratosphere
(d) mesosphere
Option c – Stratosphere
Which one of the following gases is found in the highest quantity in the exosphere?
(a) Hydrogen
(b) Helium
(c) Nitrogen
(d) Oxygen
Option a – Hydrogen
Arrange the following layers of the atmosphere vertically from the surface of the Earth. I. Mesosphere II. Troposphere III. Stratosphere IV. Thermosphere Codes
(a) I, II, III, IV
(b) II, I, III, IV
(c) II, III, I, IV
(d) III, IV, II, I
Option c – II, III, I, IV
Assertion (A) Because of the Sun’s UV radiation, Earth’s upper atmosphere is partly (0.1% or less) ionized plasma at altitudes of 70-1500 km. Reason (R) The zone of the ionosphere, is coupled to both the magnetosphere and the neutral atmosphere. Codes
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true, but R is not the correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Option d – A is false, but R is true
The value of the solar constant is
(a) 2 Langley/min
(b) 1 Langley/min.
(c) 13 Langley/min
(d) 0.5 Langley/min
Option a – 2 Langley/min
The intensity of insolation depends on
(a) altitude
(b) the nature of the terrain
(c) wind
(d) latitude
Option d – latitude
The lowest temperature is observed/recorded in which one of the following layers of the atmosphere?
(a) Stratosphere
(b) Mesosphere
(c) Thermosphere
(d) Troposphere
Option b – Mesosphere
Assertion (A) Within the mesosphere, temperature decreases with increasing altitude. Reason (R) This is due to decreasing solar heating and increasing cooling by CO₂ radiative emission. Codes
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true, but R is not the correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Option a – Both A and R are true and R is the correct explanation of A
Which one of the following layers of the atmosphere is responsible for the deflection of radiowaves?
(a) Troposphere
(b) Stratosphere
(c) Mesosphere
(d) lonosphere
Option d – Ionosphere
The correct proportion of gases in the atmosphere in descending order is
(a) Nitrogen, carbon dioxide, and Oxygen.
(b) Nitrogen, Oxygen, and Carbon dioxide.
(c) Carbon dioxide, Nitrogen, and Oxygen.
(d) Carbon dioxide, Oxygen, and Nitrogen.
Option b – Nitrogen, Oxygen, and Carbon dioxide
Which one of the following is the correct order in which the gases from the atmosphere disappear as one moves away from the surface of the Earth?
(a) Carbon dioxide-Oxygen-Nitrogen
(b) Oxygen-Nitrogen-Carbon dioxide
(c) Carbon dioxide-Nitrogen-Oxygen
(d) Nitrogen-Oxygen-Carbon dioxide
Option c – Carbon dioxide-Nitrogen-Oxygen
(a) the stratosphere
(b) the ionosphere
(c) the mesosphere
(d) the troposphere
Option d – the troposphere
Which of the following is the lowermost layer of the Atmosphere?
(a) Troposphere
(b) Exosphere
(c) Thermosphere
(d) Mesosphere
Option a – troposphere
Troposphere is the hottest part of the atmosphere because
(a) it is closest to the Sun.
(b) heat is generated in it.
(c) it is heated by the Earth’s surface.
(d) there are charged particles in it.
Option c – it is heated by the Earth’s surface
Which one of the four regions above Earth has the smallest height (km)?
(a) Stratosphere
(b) Mesosphere
(c) Thermosphere
(d) Troposphere
Option d – Troposphere
The normal lapse rate of the temperature of Earth’s atmosphere drops to 0°C at the
(a) the upper part of the ionosphere
(b) the upper boundary of the tropopause
(c) the lower part of the mesosphere
(d) the upper boundary of stratopause
Option b – the upper boundary of the tropopause
The atmospheric air is held to the Earth by
(a) gravity
(b) winds
(c) clouds
(d) rotation of the Earth
Option a – gravity
If the Earth did not have an atmosphere, temperature extremes between day and night would
(a) increase
(b) decrease
(c) stay the same
(d) fluctuate rapidly
Option a – increase
Which one of the following statements about the atmosphere is correct?
(a) The atmosphere has definite upper limits but gradually thins until it becomes imperceptible.
(b) The atmosphere has no definite upper limits but gradually thins until it becomes imperceptible.
(c) The atmosphere has definite upper limits but gradually thickens until it becomes imperceptible.
(d) The atmosphere has no definite upper limits but gradually thickens until it becomes imperceptible.
Option b – The atmosphere has no definite upper limits but gradually thins until it becomes imperceptible
On average, air contains ……… % of water vapor ( Climatology MCQ )
(a) 1
(b) 3
(c) 5
(d) 7
Option b – 3
Which among the following gases has the most volume by percentage in the atmosphere?
(a) Carbon dioxide
(b) Argon
(c) Neon
(d) Helium
Option b – Argon
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