More Questions on Atmosphere
- Q. The radiation that heats earth’s atmosphere comes from the
A)Ionosphere
B)Sun
C)Earth
D)Sun and earth
Answer: Sun
- Q. The dry wind ‘Santa Ana’ blows in ________
A)Switzerland
B)Siberia
C)Argentina
D)California
Answer: California
- Q. Which one among the following statements relating to an anticyclone is correct?
A)The contribution of an anticyclone towards determining weather of an area is quite significant
B)Anticyclone is a wind system with a high pressure centre
C)In anticyclone the movement of wind is inward
D)The movement of wind is clockwise in an anticyclone of southern hemisphere
Answer: Anticyclone is a wind system with a high pressure centre
- Q. Winds and air currents differ in the aspect that ________
A)The winds blow on lands while air currents blow over seas and oceans
B)Air currents blow much faster than winds
C)Air currents are always moisture laden while the winds are usually dry
D)Winds are horizontal movements of air while air currents are the vertical movements of air
Answer: Winds are horizontal movements of air while air currents are the vertical movements of air
- Q. Water vapour beyond the dew point results in ________
A)Condensation
B)Precipitation
C)Hailstorm
D)Formation of ice
Answer: Condensation
- Q. The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from ________
A)Stratosphere
B)Troposphere
C)Mesosphere
D)Ionosphere
Answer: Ionosphere
- Q. The chemically inactive gas present in the atmosphere is ________
A)Water vapour
B)Nitrogen
C)Argon
D)Oxygen
Answer: Argon
- Q. The instrument used for measuring relative humidity in air is ________
A)Pantograph
B)Hygrometer
C)Hydrograph
D)Barograph
Answer: Hygrometer
- 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. 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. Which one among the following is a high cloud?
A)Nimbostratus
B)Cirrus
C)Cumulonimbus
D)Stratus
Answer: Cirrus
- Q. Which of the following winds is incorrectly paired with the area in which it prevails?
A)Southerly Burster - New South Wales
B)Berg wind - South eastern Africa
C)Karaburan - Tarim basin of Sinkiang
D)Hurricanes - New Zealand
Answer: Hurricanes - New Zealand
- Q. Which of the following is/are characteristic of a depression in the southern hemisphere? I. It is a mass of air whose isobars form an oval or circular shape II. Pressure is high in the centre and decreases towards the outside III. Air moves anti-clockwise
A)I and III
B)I only
C)II only
D)All three
Answer: I only
- 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. Temperate cyclones bring along with them ________
A)Thunderstorms and torrential rainfall
B)Pleasant weather
C)Snowfall and hail
D)Mild rainfall
Answer: Mild rainfall
- Q. When a descending air contracts and its volume decreases, what happens to its temperature?
A)Its temperature remains constant
B)Its temperature decreases
C)Its temperature increases
D)Its temperature first increases, then decreases
Answer: Its temperature increases
- Q. In the Southern hemisphere the Westerlies blow from ________
A)North west
B)North
C)North east
D)South east
Answer: North west
- Q. Mist is a result of which one of the following?
A)Sublimation
B)Condensation
C)Evaporation
D)Saturation
Answer: Condensation
- 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. Consider the following statements regarding the distribution and pattern of isotherms 1. In the northern hemisphere, isotherms bend sharply equator-ward over the continents during winter. 2. Temperature gradients are greater in summer than in winter in the northern hemisphere. Which of the statement(s) given above is/are correct?
A)Both 1 and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: 1 only
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