More Questions on Atmosphere
- Q. An upper air wind system with very high velocities in certain parts of the atmosphere is called ________
A)Jet stream
B)A cyclone
C)An anticyclone
D)A tsunami
Answer: Jet stream
- Q. Condensation is a process which occurs when
A)Temperature in the air parcel remains static
B)Temperature falls below 0°C
C)Absolute humidity becomes equal to relative humidity
D)Relative humidity becomes 100% and more
Answer: Relative humidity becomes 100% and more
- Q. At low elevation which among the following clouds are to be found ?
A)Cumulus
B)Cirrus
C)Nimbus
D)Stratus
Answer: Nimbus
- Q. The total number of layers above Earth are
A)2
B)4
C)5
D)3
Answer: 5
- Q. Which of the following constituents of the atmosphere are important from the climatic point of view ? 1. Nitrogen 2. Oxygen 3. Carbon dioxide
A)1, 2 and 3
B)1 and 2
C)2 and 3
D)Only 3
Answer: Only 3
- 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. Precipitation takes place when ________
A)Temperature of moisture in air sharply decreases
B)The sky is overcast with clouds
C)Temperature of moisture in air suddenly increases
D)Winds begin to blow in a circular motion
Answer: The sky is overcast with clouds
- 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. Which one of the following characteristics is not associated with the tropical cyclones?
A)As the cold front passes, the weather changes very rapidly
B)Before the cyclone arrives the air becomes very still and temperature and humidity are high
C)As the front of the vertex arrives, gusty winds develop and thick clouds appear
D)Calm conditions return when the eye of the cyclone arrives
Answer: Calm conditions return when the eye of the cyclone arrives
- Q. Which of the following is/are correct in matching the layer of atmosphere and its characteristic ? I. Troposphere : weather phenomena II. Stratosphere : ozone layer III. Ionosphere : radio waves reflected to earth’s surface IV. Mesosphere : Aurorae
A)II and III
B)I, II, III and IV
C)I, II and IV
D)I, II and III
Answer: I, II and III
- 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. A devastating Cloud Burst swept over Leh on August 2010. Which one of the following statements with regard to Cloud Burst is not correct?
A)Cloud Burst occurs only in hilly areas
B)Cloud Burst is a localized weather phenomenon representing highly concentrated rainfall over a small area in a short duration of time
C)Cloud Burst occurs due to upward movement of moisture laden air with sufficient rapidity to form cumulonimbus clouds
D)There is no satisfactory technique till now for predicting Cloud Burst
Answer: Cloud Burst occurs only in hilly areas
- Q. In which layer, temperature increases dramatically?
A)Stratosphere
B)Ionosphere
C)Exosphere
D)Troposphere
Answer: Ionosphere
- Q. At which height, the gaseous surrounding has covered the Earth’s atmosphere?
A)200km
B)100km
C)150km
D)300km
Answer: 300km
- Q. Which one of the following layers of the atmosphere is responsible for the deflection of radio waves?
A)Mesosphere
B)Troposphere
C)Stratosphere
D)Ionosphere
Answer: Ionosphere
- 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. 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. Which of the following layers of the Earth’s atmosphere provide ideal flying conditions for Jet aircraft?
A)Stratosphere
B)Mesosphere
C)Thermosphere
D)Troposphere
Answer: Stratosphere
- 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. The form of precipitation in which the raindrops get frozen into ice on coming in contact with a cold layer of air near the earth’s surface is called ________
A)Sleet
B)Fog
C)Hail
D)Snowfall
Answer: Sleet
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