More Questions on Atmosphere
- Q. Which of the following is not one of the three processes involved in the transfer of water between the atmosphere and the surface of the Earth?
A)Condensation
B)Insolation
C)Evaporation
D)Precipitation
Answer: Insolation
- Q. Which is the warmest layer of the atmosphere?
A)Stratosphere
B)Thermosphere
C)Troposphere
D)Mesosphere
Answer: Thermosphere
- Q. What is the correct sequence of the following zonal pressure belts? 1. Subpolar low 2. Equatorial low 3. Polar high 4. Subtropical high
A)2, 4, 1, 3
B)2, 3, 1, 4
C)1, 4, 2, 3
D)1, 3, 2, 4
Answer: 2, 4, 1, 3
- 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 jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation? 1. There are no clouds or water vapour in the lower stratosphere. 2. There are no vertical winds in the lower stratosphere. Which of the statements given above is/are correct in this context?
A)Both 1 and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: Both 1 and 2
- Q. Which of the following is a cold wind?
A)Chinook
B)Buran
C)Foehn
D)Sirocco
Answer: Buran
- Q. When the wind is deflected due to the rotation of the Earth, it is called as ________
A)Westerlies
B)Geostropic wind
C)Polar wind
D)Trade winds
Answer: Geostropic wind
- Q. In the northern hemisphere, the wind blowing from the Horse latitudes to the Doldrums is called ________
A)Polar Easterly
B)Westerly wind
C)Trade wind
D)Jet Stream
Answer: Trade wind
- 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. Troposphere is the most warm part of the atmosphere because
A)It gets warm from the heat of the surface of the Earth
B)It is closer to the Sun
C)It contains charged particles
D)It produces heat
Answer: It gets warm from the heat of the surface of the Earth
- Q. Which one of the following is the cloud that is dark-grey or black, found at very low height and brings the real rain?
A)Cirrostratus
B)Altocumulus
C)Cirrus
D)Nimbostratus
Answer: Nimbostratus
- Q. Dew point is ________
A)A low pressure system in lower atmosphere
B)Amount of actual water vapour present per unit volume of air
C)Incoming solar radiation
D)A temperature at which a given sample of air becomes saturated
Answer: A temperature at which a given sample of air becomes saturated
- 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. Temperature generally decreases towards the poles because ________
A)Cold surfaces do not absorb solar energy as readily as warm surfaces
B)Air movement is generally towards the. equator
C)Cold polar air masses prevent surface heating of the land
D)Progressively lesser solar energy per unit area falls on the earth's surface as we move to polar regions
Answer: Progressively lesser solar energy per unit area falls on the earth's surface as we move to polar regions
- Q. The layer of atmosphere which reflects radio waves is
A)Stratosphere
B)Ionosphere
C)Troposphere
D)Exosphere
Answer: Ionosphere
- Q. Venus has atmosphere made up of
A)Helium
B)Ammonia
C)Carbon dioxide
D)Hydrogen
Answer: Carbon dioxide
- Q. The instrument used for measuring relative humidity in air is ________
A)Pantograph
B)Hygrometer
C)Hydrograph
D)Barograph
Answer: Hygrometer
- 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 tropical cyclones – Hurricanes and Typhoons – develop and mature ________
A)Over the water bodies only
B)At the same place
C)Over the land masses only
D)Anywhere in the tropical zone
Answer: Anywhere in the tropical zone
- Q. Which of the following is especially true of anticyclones in the southern hemisphere?
A)They often form over continents
B)The air moves in a circular manner
C)Pressure increases from the outside to the centre
D)The air moves in an anti-clockwise direction
Answer: The air moves in an anti-clockwise direction
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