More Questions on Atmosphere
- Q. What helps to maintain the heat budget on the surface of the earth?
A)Incoming solar radiation is reflected
B)Incoming insolation in short waves and terrestrial radiation in long waves
C)The atmosphere absorbs heat
D)The earth absorbs heat
Answer: Incoming insolation in short waves and terrestrial radiation in long waves
- Q. The core of the Earth is also known as
A)Barysphere
B)Lithosphere
C)Mesosphere
D)Centrosphere
Answer: Barysphere
- Q. Increase in carbon dioxide in atmosphere causes ________
A)Uniform earth temperature
B)Rise in earth temperature
C)Fall in earth temperature
D)Increase in Ultraviolet rays
Answer: Rise in earth temperature
- 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. At low elevation which among the following clouds are to be found ?
A)Cumulus
B)Cirrus
C)Nimbus
D)Stratus
Answer: Nimbus
- 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. Doldrums are belts of low atmospheric pressure obtained in the regions adjoining the equator to a distance of ________
A)5° latitude towards north and south
B)5° latitude towards the north only
C)5° latitude towards the south only
D)15° latitude towards north and south
Answer: 5° latitude towards north and south
- 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. Atmospheric humidity is measured by ________
A)Lysimeter
B)Psychrometer
C)Anemometer
D)Hydrometer
Answer: Psychrometer
- Q. What causes snowfall?
A)When condensation takes place in form of fog and precipitation occurs as flakes
B)When condensation takes place below 0° C and precipitation occurs in the form of flakes
C)When rain freezes into snow-flakes while passing through the atmosphere
D)When the air temperature is much lower than surface temperature
Answer: When condensation takes place below 0° C and precipitation occurs in the form of flakes
- Q. Which of the following are true regarding ionosphere? I. It is the uppermost layer of atmosphere II. The molecules and atoms of nitrogen and oxygen in this layer absorb a part of solar radiation and become ionized III. This layer is responsible for reflecting back the radio wave transmitted from the earth
A)II and III
B)I and II
C)I and II
D)I, II and III
Answer: II and III
- Q. Which one of the following conditions is not necessary for precipitation to occur?
A)The air must be cooled below its dew point
B)The air must be warm
C)The air must be saturated
D)The air must contain hygroscopic particles
Answer: The air must be warm
- Q. The continuous circulation of water among the hydrosphere, atmosphere and lithosphere is known as
A)Hydro-equilibrium
B)Water circulation
C)Hydrologic cycle
D)Precipitation
Answer: Hydrologic cycle
- Q. Relative humidity
A)Decreases with decreased temperature
B)Increases with increased temperature
C)Decreases with increased temperature
D)Has no relation with increase or decrease of temperature
Answer: Decreases with increased temperature
- 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. 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 among the following is a high cloud?
A)Nimbostratus
B)Cirrus
C)Cumulonimbus
D)Stratus
Answer: Cirrus
- 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. The chemically inactive gas present in the atmosphere is ________
A)Water vapour
B)Nitrogen
C)Argon
D)Oxygen
Answer: Argon
- Q. Temperate lows are ________
A)Polar regions which have very low temperatures
B)Low pressure areas in cyclones
C)Equatorial low pressure belt
D)Sub-polar low pressure belts
Answer: Sub-polar low pressure belts
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