Q. The layer of atmosphere which reflects radio waves is

Correct Answer

Ionosphere

More Questions on Atmosphere

  • Q. Where is Ozone layer found?
    A)Stratosphere
    B)Troposphere
    C)Ionosphere
    D)Exosphere
    Answer: Stratosphere
  • 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. 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. What is the correct sequence of the following zonal pressure belts? 1. Subpolar low 2. Equatorial low 3. Polar high 4. Subtropical high
    A)2, 4, 1, 3
    B)2, 3, 1, 4
    C)1, 4, 2, 3
    D)1, 3, 2, 4
    Answer: 2, 4, 1, 3
  • 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. 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. 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. The dry wind ‘Santa Ana’ blows in ________
    A)Switzerland
    B)Siberia
    C)Argentina
    D)California
    Answer: California
  • Q. When a descending air contracts and its volume decreases, what happens to its temperature?
    A)Its temperature remains constant
    B)Its temperature decreases
    C)Its temperature increases
    D)Its temperature first increases, then decreases
    Answer: Its temperature increases
  • Q. Which one among the following is a high cloud?
    A)Nimbostratus
    B)Cirrus
    C)Cumulonimbus
    D)Stratus
    Answer: Cirrus
  • Q. What is approximately the quantum of the pressure exerted by the atmosphere at sea level?
    A)Five kg per sq cm
    B)One kg per sq km
    C)One kg per sq mtr
    D)Five kg per sq mtr
    Answer: One kg per sq mtr
  • 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. 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 of the following statements is not true of Trade Winds?
    A)They are constant in strength and direction
    B)They blow from the Horse Latitudes to the Doldrums
    C)They are deflected to the right to become South-East Trades in the southern hemisphere
    D)They sometimes contain intense depressions
    Answer: They are deflected to the right to become South-East Trades in the southern hemisphere
  • Q. Local thunderstorms ‘Nor westers’ are prominent in ________
    A)Andhra Pradesh
    B)Punjab
    C)West Bengal
    D)Tamil Nadu
    Answer: West Bengal
  • Q. The instrument used for measuring relative humidity in air is ________
    A)Pantograph
    B)Hygrometer
    C)Hydrograph
    D)Barograph
    Answer: Hygrometer
  • Q. The layer of atmosphere which reflects radio waves is
    A)Stratosphere
    B)Ionosphere
    C)Troposphere
    D)Exosphere
    Answer: Ionosphere
  • Q. What is the name of the layer closest to the Earth?
    A)Troposphere
    B)Ionosphere
    C)Stratosphere
    D)Exosphere
    Answer: Troposphere
  • Q. Which are of the following is wrongly characterised?
    A)Sirocco – Sahara – spring - hot
    B)Chinook- Canada - winter - warm
    C)Khamsin – Egypt – spring - hot
    D)Mistral - Rhone Valley - summer – cold
    Answer: Mistral - Rhone Valley - summer – cold
  • Q. The absence of which among the following causes the temperature of the atmosphere to decrease with ascent along with decreasing density of air? I. Vegetation II. Water III. Carbon dioxide IV. Oxygen V. Nitrogen
    A)II and III
    B)I and II
    C)III and IV
    D)II and V
    Answer: II and III

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