Q. A level of atmosphere which is composed partly of Electrons and Positive Ions is called

Correct Answer

Ionosphere

More Questions on Atmosphere

  • Q. Compared to other slopes in the northern hemisphere which is the warmest?
    A)North facing
    B)East facing
    C)South facing
    D)West facing
    Answer: South facing
  • Q. Doldrums are ________
    A)High pressure areas on mountains
    B)High latitudes with heavy snow
    C)Equatorial zone with low pressure
    D)Sub-polar zone with high pressure
    Answer: Equatorial zone with low pressure
  • 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. 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
  • Q. The water content in the atmosphere ________
    A)Decreases as temperature increases
    B)Is independent of temperature
    C)Increases as temperature increases
    D)Either increases or decreases with temperature increase
    Answer: Decreases as temperature increases
  • Q. The term used for the zone at low pressure and light and variable winds in the oceanic equatorial regions is ________
    A)Horse-latitudes
    B)Depression
    C)Doldrums
    D)Inter-tropical convergence
    Answer: Depression
  • Q. Which one of the following is a type of planetary wind?
    A)Westerlies
    B)Monsoons
    C)Loo
    D)Tornadoes
    Answer: Westerlies
  • Q. Which of the following are true with regard to temperature control of the atmosphere of a given place? I. The major temperature contrasts on earth’s surface are between land masses and oceans II. During night, the water surface cools more rapidly than the land surface III. Temperature generally decreases with latitude on either side of the equator IV. Temperature rises to a maximum during summer and falls to a minimum during winter
    A)I and II
    B)I, III and IV
    C)II, III and IV
    D)II and IV
    Answer: I, III and IV
  • 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. In the earth’s atmosphere, the atmospheric pressure ________
    A)Remains constant with height
    B)Increases with height
    C)Decreases with height
    D)First increases and then decreases with height
    Answer: Decreases with height
  • 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. 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. Heat gain through insolation and heat loss through terrestrial radiation are equal approximately at which latitude?
    A)90° North and South
    B)22° W North and South
    C)40° North and South
    D)66° W North and South
    Answer: 40° North and South
  • Q. What is the name of the layer closest to the Earth?
    A)Troposphere
    B)Ionosphere
    C)Stratosphere
    D)Exosphere
    Answer: Troposphere
  • Q. A sudden fall in the barometric reading indicates ________
    A)Fine weather
    B)Rain
    C)Storm
    D)Extreme cold
    Answer: Storm
  • 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. The innermost layer is the core with a radius of about ________ km.
    A)9500
    B)500
    C)6500
    D)3500
    Answer: 3500
  • Q. The intensity of insolation depends on
    A)Wind
    B)Altitude
    C)Nature of terrain
    D)Latitude
    Answer: Latitude
  • Q. Logically, what does a continually rising air pressure indicate?
    A)Fine and settled weather
    B)Advent of unsettled and cloudy weather
    C)Advent of a cyclone
    D)Fine and unsettled weather
    Answer: Advent of unsettled and cloudy weather
  • 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

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