More Questions on Atmosphere
- Q. The plane of contact of the troposphere and stratosphere is known as ________
A)Stratopause
B)Mesosphere
C)Ionosphere
D)Tropopause
Answer: Tropopause
- Q. What is the major role of a greenhouse gas that contributes to temperature rise of the Earth’s surface?
A)Lets outgoing infrared radiation pass through but stops incoming sunlight
B)Transparent to both incoming sunlight and outgoing infrared radiation
C)Stops both incoming sunlight and outgoing infrared radiation
D)Lets incoming sunlight pass through but stops outgoing infrared radiation
Answer: Lets incoming sunlight pass through but stops outgoing infrared radiation
- Q. Which one of the following constituents of the atmosphere causes greatest changes in climate and weather?
A)Ozone
B)Nitrogen
C)Oxygen
D)Water Vapour
Answer: Water Vapour
- Q. Which of the following is located at the minimum height from the Earth?
A)Thermosphere
B)Stratosphere
C)Mesosphere
D)Troposphere
Answer: Troposphere
- Q. Which of the following is the annual precipitation of an area?
A)The total amount of rain per year, irrespective of snow, hail and sleet
B)All forms of precipitation converted to the quantity of liquid water
C)The total actual amount of rain, snow, hail and sleet
D)All forms of precipitation measured after conversion to equal quantity of ice
Answer: All forms of precipitation converted to the quantity of liquid water
- 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. 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. 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. 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. 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 climates is found in coastal areas of Californian North America, Central Chile in South America and South-West tip of West Australia?
A)Humid Continental
B)Tropical savanna
C)Mediterranean
D)Low-latitude steppe
Answer: Mediterranean
- Q. Local thunderstorms ‘Nor westers’ are prominent in ________
A)Andhra Pradesh
B)Punjab
C)West Bengal
D)Tamil Nadu
Answer: West Bengal
- 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. In the atmosphere of the primitive earth there was no ________
A)Nitrogen
B)Oxygen
C)Carbon dioxide
D)Ammonia
Answer: Oxygen
- Q. In which layer, temperature increases dramatically?
A)Stratosphere
B)Ionosphere
C)Exosphere
D)Troposphere
Answer: Ionosphere
- Q. Some large lakes in temperate latitudes have a moderating influence upon the climate of adjacent land surfaces. Such an influence may develop when ________
A)Prevailing out-blowing winds cross the lake in winter
B)The water is shallow
C)The lake is high above sea level
D)The lake is a basin of inland drainage
Answer: Prevailing out-blowing winds cross the lake in winter
- 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. The final boundary between the Earth and the outer space is called
A)Mesopause
B)Magnetosphere
C)Ionosphere
D)Magnetopause
Answer: Magnetopause
- Q. The innermost layer is the core with a radius of about ________ km.
A)9500
B)500
C)6500
D)3500
Answer: 3500
- Q. What is the percentage of Nitrogen in atmosphere of the Earth?
A)78.03
B)0.94
C)0.03
D)85.02
Answer: 78.03
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