More Questions on Atmosphere
- Q. Choose the incorrect statement ________
A)Absolute humidity is expressed in grams per cubic metre of air
B)Capacity of air to hold moisture decreases with a rise in temperature of the air
C)The air pressure decreases with an increase in temperature
D)With an ascent of every 165 metres, the temperature is reduced by 1°C
Answer: Absolute humidity is expressed in grams per cubic metre of air
- Q. When the relative humidity is 50% and air temperature is 30°C, a cooling of air mass ________
A)Decreases the relative humidity
B)Raises the absolute humidity
C)Produces no change in relative humidity
D)Increases the relative humidity
Answer: Decreases the relative humidity
- Q. The instrument used for finding out wind-direction is ________
A)Wind gauze
B)Anemometer
C)Wind vane
D)Hygrometer
Answer: Wind vane
- Q. An important gas in the atmosphere that absorbs sun’s ultraviolet rays is
A)Ozone
B)Oxygen
C)Nitrogen
D)Hydrogen
Answer: Ozone
- Q. Which of the following characterises the Foehn? I. It is warm II. It is humid III. It is common in the valleys of the northern Alps IV. It blows in winter
A)I, III and IV
B)I, II and IV
C)I, II and III
D)I, II, III and IV
Answer: I, III and IV
- Q. Freely moving bodies are ________
A)Deflected upwards at the equator
B)Deflected to their right in the northern hemisphere
C)Deflected to the right in the southern hemisphere
D)Unaffected by the earth's movements
Answer: Deflected to their right in the northern hemisphere
- Q. Which of the following sequences of atmospheric layers is correct from below?
A)Troposphere, Tropopause, Stratosphere, Ionosphere
B)Stratosphere, Ionosphere, Tropopause, Troposphere
C)Ionosphere, Troposphere, Stratosphere, Tropopause
D)Tropopause, Troposphere, Ionosphere, Stratosphere
Answer: Troposphere, Tropopause, Stratosphere, Ionosphere
- 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 instrument used for measuring relative humidity in air is ________
A)Pantograph
B)Hygrometer
C)Hydrograph
D)Barograph
Answer: Hygrometer
- 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. The most abundant element in the Earth’s atmosphere is
A)Oxygen
B)Argon
C)Nitrogen
D)Krypton
Answer: Nitrogen
- 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 of the following depletion results in the increase in the UV radiation on the Earth?
A)Ozone
B)Carbon monoxide
C)Carbon dioxide
D)Oxygen
Answer: Ozone
- Q. Consider the following statements: 1. Either of the two belts over the oceans at about 30° to 35° N and S Latitudes is known as Horse Latitude. 2. Horse latitudes are low pressure belts. Which of the statements given above is/are correct?
A)Both 1 and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: 1 only
- Q. Excess carbon dioxide in the atmosphere due to pollution will cause
A)No change in earth's temperature
B)Earth's temperature to rise
C)Earth's temperature to fall
D)Increase in ultra-violet radiation reaching the earth
Answer: Earth's temperature to rise
- 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. Where do all meteorological incidents occur?
A)Ionosphere
B)Stratosphere
C)Troposphere
D)Exosphere
Answer: Troposphere
- Q. A temperature inversion is most likely to occur under which of the following conditions?
A)Calm, cloudy and humid night
B)Mountain top in late evening
C)Windy but cloudy night
D)Calm, clear and cool winter night
Answer: Calm, clear and cool winter night
- Q. Consider the following statements: 1. The annual range of temperature is greater in the Pacific Ocean than that in the Atlantic Ocean. 2. The annual range of temperature is greater in the Northern Hemisphere than that in the Southern Hemisphere. Which of the statements given above is/are correct?
A)Both 1and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: 2 only
- Q. Which of the following are true with regard to temperature control of the atmosphere of a given place? I. The major temperature contrasts on earth’s surface are between land masses and oceans II. During night, the water surface cools more rapidly than the land surface III. Temperature generally decreases with latitude on either side of the equator IV. Temperature rises to a maximum during summer and falls to a minimum during winter
A)I and II
B)I, III and IV
C)II, III and IV
D)II and IV
Answer: I, III and IV
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