More Questions on Atmosphere
- Q. Relative humidity of the atmosphere is directly affected by ________
A)Change in the direction of winds
B)Change in atmospheric pressure
C)Change in atmospheric temperature
D)None of these
Answer: Change in atmospheric temperature
- Q. Smog is likely to occur ________
A)On calm, clear and cool nights
B)Around valleys
C)Near lakes
D)Near the industrial areas
Answer: Near the industrial areas
- Q. Doldrums are ________
A)High pressure areas on mountains
B)High latitudes with heavy snow
C)Equatorial zone with low pressure
D)Sub-polar zone with high pressure
Answer: Equatorial zone with low pressure
- Q. Which one among the following forces is most powerful in determining movement of wind including its velocity ?
A)Frictional force
B)Gravitational force
C)Centrifugal force
D)Pressure gradient force
Answer: Pressure gradient force
- Q. Troposphere is the hottest part of the atmosphere because
A)It is heated by the Earth's surface
B)It is closest to the Sun
C)There are charged particles in it
D)Heat is generated in it
Answer: It is heated by the Earth's surface
- Q. The velocity of winds is related to ________
A)Pressure gradient in the direction of their flow
B)The amount of moisture they carry
C)The nearness to the sea
D)The direction in which they blow
Answer: Pressure gradient in the direction of their flow
- Q. Which is the warmest layer of the atmosphere?
A)Stratosphere
B)Thermosphere
C)Troposphere
D)Mesosphere
Answer: Thermosphere
- Q. The contact of two air masses differing sharply in humidity originates:
A)Temperate cyclones
B)Tropical cyclones
C)Inter-tropical convergence
D)Tropospheric instability
Answer: Temperate cyclones
- Q. 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)2, 3 and 4
B)1 and 4
C)2 and 4
D)1, 2 and 4
Answer: 1, 2 and 4
- Q. The dense mass of small water drops on smoke particles in the lower layers of the atmosphere is ________
A)Fog
B)Smog
C)Frost
D)Dew
Answer: Smog
- Q. Because of which one of the following factors, clouds do not precipitate in deserts?
A)High wind velocity
B)Low pressure
C)Low humidity
D)High temperature
Answer: Low humidity
- Q. The inner-most layer of the Earth is known as
A)Aesthenosphere
B)Lithosphere
C)Mesosphere
D)Barysphere
Answer: Barysphere
- Q. Warm dry winds blowing down the east slopes of Rockies are known as ________
A)Foehn
B)Mistral
C)Nor' westers
D)Chinook
Answer: Chinook
- Q. Northern part of Australia is typified by which one of the following?
A)Temperate climate
B)Equatorial climate
C)Mediterranean climate
D)Monsoon climate
Answer: Monsoon climate
- Q. Which one among the following statements relating to a cyclone is not correct?
A)Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere
B)It is a wind circulation system with a low pressure at the centre
C)It brings about sudden change In weather condition in an area
D)It is known as hurricane in West Indies
Answer: Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere
- Q. A layer in the Earth’s atmosphere called Ionosphere facilitates radio communication. Why? 1. The presence of ozone causes the reflection of radio waves to Earth. 2. Radio waves have a very long wavelength. Which of the statements given above is fare correct?
A)Both 1and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: Neither 1 nor 2
- Q. 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)1, 2 and 3
B)2 and 3
C)1 and 3
D)1 only
Answer: 2 and 3
- Q. Consider the following statements 1. Tropical cyclones have circular isobars. 2. Tropical cyclones originate entirely within the tropical air mass. 3. The intensity and magnitude of hurricanes generally exceed those of typhoons. 4. Tropical cyclones are more destructive than the western disturbances. Select the correct answer by using the following codes
A)2 and 3
B)1, 2 and 4
C)1 only
D)3 and 4
Answer: 1, 2 and 4
- Q. The cold and dense air blowing down the mountain slope during the night is known as ________
A)Katabatic wind
B)Anabatic wind
C)Khamsin
D)Harmattan
Answer: Katabatic wind
- Q. What is the percentage of Nitrogen in atmosphere of the Earth?
A)78.03
B)0.94
C)0.03
D)85.02
Answer: 78.03
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