Q. A layer in the Earth’s atmosphere called Ionosphere facilitates radio communication. Why? 1. The presence of ozone causes the reflection of radio waves to Earth. 2. Radio waves have a very long wavelength. Which of the statements given above is fare correct?

Correct Answer

Neither 1 nor 2

More Questions on Atmosphere

  • Q. Which one of the following characteristics is not associated with the tropical cyclones?
    A)As the cold front passes, the weather changes very rapidly
    B)Before the cyclone arrives the air becomes very still and temperature and humidity are high
    C)As the front of the vertex arrives, gusty winds develop and thick clouds appear
    D)Calm conditions return when the eye of the cyclone arrives
    Answer: Calm conditions return when the eye of the cyclone arrives
  • Q. Which of the following is especially true of anticyclones in the southern hemisphere?
    A)They often form over continents
    B)The air moves in a circular manner
    C)Pressure increases from the outside to the centre
    D)The air moves in an anti-clockwise direction
    Answer: The air moves in an anti-clockwise direction
  • 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. 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. Which of the following sequences of atmospheric layers is correct from below?
    A)Troposphere, Tropopause, Stratosphere, Ionosphere
    B)Stratosphere, Ionosphere, Tropopause, Troposphere
    C)Ionosphere, Troposphere, Stratosphere, Tropopause
    D)Tropopause, Troposphere, Ionosphere, Stratosphere
    Answer: Troposphere, Tropopause, Stratosphere, Ionosphere
  • 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. The hot and dry winds that help in the ripening of grapes in the Alps region is ________
    A)Mistral
    B)Chi nook
    C)Foehn
    D)Roaring Forties
    Answer: Foehn
  • Q. Which one of the following is not a correct example of tropical cyclone?
    A)Hurricanes
    B)Tornadoes
    C)Typhoons
    D)Nor westers
    Answer: Nor westers
  • Q. In the northern hemisphere, the wind blowing from the Horse latitudes to the Doldrums is called ________
    A)Polar Easterly
    B)Westerly wind
    C)Trade wind
    D)Jet Stream
    Answer: Trade wind
  • Q. Which one among the following is a high cloud?
    A)Nimbostratus
    B)Cirrus
    C)Cumulonimbus
    D)Stratus
    Answer: Cirrus
  • Q. Which of the following depletion results in the increase in the UV radiation on the Earth?
    A)Ozone
    B)Carbon monoxide
    C)Carbon dioxide
    D)Oxygen
    Answer: Ozone
  • 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. Transfer of surplus heat from the lower latitudes to higher latitudes is done by : I. ocean currents II. planetary winds III. tides IV. waves
    A)I and IV
    B)I and II
    C)III and IV
    D)II and III
    Answer: I and II
  • Q. A devastating Cloud Burst swept over Leh on August 2010. Which one of the following statements with regard to Cloud Burst is not correct?
    A)Cloud Burst occurs only in hilly areas
    B)Cloud Burst is a localized weather phenomenon representing highly concentrated rainfall over a small area in a short duration of time
    C)Cloud Burst occurs due to upward movement of moisture laden air with sufficient rapidity to form cumulonimbus clouds
    D)There is no satisfactory technique till now for predicting Cloud Burst
    Answer: Cloud Burst occurs only in hilly areas
  • Q. When can one record the lowest temperature of air?
    A)At 3 a.m.
    B)Just before sunrise
    C)At midnight
    D)No fixed time
    Answer: Just before sunrise
  • Q. The plane of contact of the troposphere and stratosphere is known as ________
    A)Stratopause
    B)Mesosphere
    C)Ionosphere
    D)Tropopause
    Answer: Tropopause
  • Q. The heat from Sun to Earth is called as
    A)Emitted Heat
    B)Temperature Radiation
    C)Insolation
    D)Solar Radiation
    Answer: Solar Radiation
  • Q. Which one among the following local winds is not characteristically hot and dry?
    A)Khamsin
    B)Sirocco
    C)Mistral
    D)Chinook
    Answer: Mistral
  • Q. Where is Ozone layer found?
    A)Stratosphere
    B)Troposphere
    C)Ionosphere
    D)Exosphere
    Answer: Stratosphere
  • 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

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