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

Correct Answer

Ionosphere

More Questions on Atmosphere

  • 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. Which of these statements are correct regarding the atmosphere of the earth: 1. It is enveloping the earth because of gravity. 2. Its density decreases with increasing height from the surface of the earth. 3. Its characteristic composition is same throughout its height. 4. Amount of pressure it exerts on earth’s surface at sea level is called one atm sphere.
    A)2, 3 and 4
    B)1 and 4
    C)2 and 4
    D)1, 2 and 4
    Answer: 1, 2 and 4
  • Q. At low elevation which among the following clouds are to be found ?
    A)Cumulus
    B)Cirrus
    C)Nimbus
    D)Stratus
    Answer: Nimbus
  • Q. Which one among the following forces is most powerful in determining movement of wind including its velocity ?
    A)Frictional force
    B)Gravitational force
    C)Centrifugal force
    D)Pressure gradient force
    Answer: Pressure gradient force
  • Q. The atmospheric layer farthest from the Earth’s surface is known as
    A)Ionosphere
    B)Stratosphere
    C)Exosphere
    D)Mesosphere
    Answer: Exosphere
  • 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. The chemically inactive gas present in the atmosphere is ________
    A)Water vapour
    B)Nitrogen
    C)Argon
    D)Oxygen
    Answer: Argon
  • 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. Temperate cyclones bring along with them ________
    A)Thunderstorms and torrential rainfall
    B)Pleasant weather
    C)Snowfall and hail
    D)Mild rainfall
    Answer: Mild rainfall
  • Q. Cloud burst means ________
    A)Presence of scattered flakes of cloud in the sky
    B)Abnormally heavy downpour of rain, associated with a thunderstorm
    C)Formation of artificial rain
    D)Sowing of seeds of a crop in a cloudy weather
    Answer: Abnormally heavy downpour of rain, associated with a thunderstorm
  • Q. A temperature inversion is most likely to occur under which of the following conditions?
    A)Calm, cloudy and humid night
    B)Mountain top in late evening
    C)Windy but cloudy night
    D)Calm, clear and cool winter night
    Answer: Calm, clear and cool winter night
  • 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 portion of the atmosphere which extends from the earth’s surface upto 6-8 miles and experiences decrease in temperature at constant rate is ________
    A)Troposphere
    B)Stratosphere
    C)Tropopause
    D)Ionosphere
    Answer: Troposphere
  • Q. The inner-most layer of the Earth is known as
    A)Aesthenosphere
    B)Lithosphere
    C)Mesosphere
    D)Barysphere
    Answer: Barysphere
  • 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. 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. Troposphere is the hottest part of the atmosphere because
    A)It is heated by the Earth's surface
    B)It is closest to the Sun
    C)There are charged particles in it
    D)Heat is generated in it
    Answer: It is heated by the Earth's surface
  • Q. In the atmosphere of the primitive earth there was no ________
    A)Nitrogen
    B)Oxygen
    C)Carbon dioxide
    D)Ammonia
    Answer: Oxygen
  • Q. Which of the following colour types do not indicate fair or fine weather?
    A)Altocumulus
    B)Cirrus
    C)Cumulus
    D)Cumulonimbus
    Answer: Cumulonimbus
  • 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

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