More Questions on Atmosphere
- Q. Choose the incorrect statement ________
A)Absolute humidity is expressed in grams per cubic metre of air
B)Capacity of air to hold moisture decreases with a rise in temperature of the air
C)The air pressure decreases with an increase in temperature
D)With an ascent of every 165 metres, the temperature is reduced by 1°C
Answer: Absolute humidity is expressed in grams per cubic metre of air
- Q. What is the name of the layer above Earth’s surface which is located at the height of 8km from poles and 16km from the equator?
A)Troposphere
B)Mesosphere
C)Atmosphere
D)Stratosphere
Answer: Troposphere
- Q. With reference to the sub-tropical high pressure belt, consider the following statements: 1. It is affected by Earth’s rotation and descent of winds from higher altitudes. 2. It is dynamically induced and characterized with anti-cyclonic conditions. Which of the statement(s) given above is/are correct?
A)2 only
B)1 only
C)Both 1 and 2
D)Neither 1 nor 2
Answer: 2 only
- 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. The phenomenon of ‘trade winds’ takes place due to
A)Radiation
B)Conduction of heat
C)Convection of heat
D)None of the above
Answer: Convection of heat
- Q. Which one of the following is a type of planetary wind?
A)Westerlies
B)Monsoons
C)Loo
D)Tornadoes
Answer: Westerlies
- Q. The layer of atmosphere which reflects radio waves is
A)Stratosphere
B)Ionosphere
C)Troposphere
D)Exosphere
Answer: Ionosphere
- Q. Which of the following statements is wrong?
A)Roughly V-shaped isobar system with a low pressure at the centre represents a trough
B)Roughly circular isobar system with a high pressure at the centre represents an anticyclone
C)Roughly circular isobar system with a low pressure at the centre represents a cyclone
D)Roughly V-shaped isobar system with a low pressure at the centre represents a hurricanes
Answer: Roughly V-shaped isobar system with a low pressure at the centre represents a hurricanes
- Q. Consider the following statements: 1. Nearly 99% of the total mass of the atmosphere lies within 30 km of the Earth’s surface. 2. The proportion of ozone in the atmosphere increases to a maximum at about 60 km from Earth’s surface. Which of the statements given above is/are correct?
A)Both 1 and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: 1 only
- Q. Consider the following statements 1. Tropical cyclones have circular isobars. 2. Tropical cyclones originate entirely within the tropical air mass. 3. The intensity and magnitude of hurricanes generally exceed those of typhoons. 4. Tropical cyclones are more destructive than the western disturbances. Select the correct answer by using the following codes
A)2 and 3
B)1, 2 and 4
C)1 only
D)3 and 4
Answer: 1, 2 and 4
- 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. 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. Frontal rain is caused by ________
A)Cyclonic activity
B)Convection currents
C)Winds from sea
D)Condensation of water evaporated from mountains
Answer: Cyclonic activity
- Q. Which is the warmest layer of the atmosphere?
A)Stratosphere
B)Thermosphere
C)Troposphere
D)Mesosphere
Answer: Thermosphere
- Q. Rain shadow effect is associated with
A)Convectional rainfall
B)Cyclonic rainfall
C)Orographic rainfall
D)Frontal rainfall
Answer: Orographic rainfall
- Q. Smog is likely to occur ________
A)On calm, clear and cool nights
B)Around valleys
C)Near lakes
D)Near the industrial areas
Answer: Near the industrial areas
- Q. Which of the following statements is incorrect?
A)Doldrum belt lies between 10°N and 10°S latitudes
B)Roaring forties are the southern latitudes where Westerlies are prevalent
C)Monsoons are local seasonal winds
D)Horse latitudes are found between Trade winds and Westerlies
Answer: Monsoons are local seasonal winds
- Q. Cyclone is a system of wind blowing ________
A)In a straight line from high to low pressure region
B)Spirally outwards from a high pressure region
C)Spirally towards low pressure region
D)From Ball of Bengal towards Bangladesh annually
Answer: Spirally towards low pressure region
- 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
- Q. Which is the lowest layer of Atmosphere?
A)Mesosphere
B)Troposphere
C)Stratosphere
D)Exosphere
Answer: Troposphere
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