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

Correct Answer

Ionosphere

More Questions on Atmosphere

  • 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. The most important factor in thunderstorms development is ________
    A)Abundance of moisture
    B)Atmospheric stability
    C)Atmospheric instability
    D)Temperature inversion
    Answer: Atmospheric instability
  • Q. Atmospheric humidity is measured by ________
    A)Lysimeter
    B)Psychrometer
    C)Anemometer
    D)Hydrometer
    Answer: Psychrometer
  • 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. Which of these statements are correct with reference to tornadoes? 1. Tornadoes are smaller and more intense than hurricanes. 2. Tornadoes are most abundant along the eastern coast of India. 3. The average tornado lasts for less than one hour. 4. Tornadoes are most common in the afternoons in the early summer.
    A)1, 2 and 4
    B)1, 3 and 4
    C)2, 3 and 4
    D)1, 2 and 3
    Answer: 1, 3 and 4
  • 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. Westerlies in southern hemisphere are stronger and persistent than in northern hemisphere. Why? 1. Southern hemisphere has less landmass as compared to northern hemisphere. 2. Coriolis force is higher in southern hemisphere as compared to northern hemisphere. Which of the statements given above is fare correct?
    A)Both 1 and 2
    B)1 only
    C)2 only
    D)Neither 1 nor 2
    Answer: 1 only
  • Q. Freely moving bodies are ________
    A)Deflected upwards at the equator
    B)Deflected to their right in the northern hemisphere
    C)Deflected to the right in the southern hemisphere
    D)Unaffected by the earth's movements
    Answer: Deflected to their right in the northern hemisphere
  • Q. The capacity of the Atmosphere to hold water vapour
    A)Increases as the temperature decreases
    B)Increases as the temperature increases
    C)Decreases as the temperature increases
    D)Decreases as the temperature decreases
    Answer: Increases as the temperature increases
  • Q. Local thunderstorms ‘Nor westers’ are prominent in ________
    A)Andhra Pradesh
    B)Punjab
    C)West Bengal
    D)Tamil Nadu
    Answer: West Bengal
  • Q. Winds blow ________
    A)From a region of low pressure to a region of high pressure
    B)In regions of low pressure
    C)From a region of high pressure to a region of low pressure
    D)In regions of high pressure
    Answer: From a region of high pressure to a region of low pressure
  • Q. Fogs formed along, the sea-coast are due to ________
    A)Convection
    B)Advection
    C)Radiaton
    D)Conduction
    Answer: Advection
  • Q. What is the name of the layer closest to the Earth?
    A)Troposphere
    B)Ionosphere
    C)Stratosphere
    D)Exosphere
    Answer: Troposphere
  • Q. Troposphere is the most warm part of the atmosphere because
    A)It gets warm from the heat of the surface of the Earth
    B)It is closer to the Sun
    C)It contains charged particles
    D)It produces heat
    Answer: It gets warm from the heat of the surface of the Earth
  • Q. What causes snowfall?
    A)When condensation takes place in form of fog and precipitation occurs as flakes
    B)When condensation takes place below 0° C and precipitation occurs in the form of flakes
    C)When rain freezes into snow-flakes while passing through the atmosphere
    D)When the air temperature is much lower than surface temperature
    Answer: When condensation takes place below 0° C and precipitation occurs in the form of flakes
  • 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. When the relative humidity is 50% and air temperature is 30°C, a cooling of air mass ________
    A)Decreases the relative humidity
    B)Raises the absolute humidity
    C)Produces no change in relative humidity
    D)Increases the relative humidity
    Answer: Decreases the relative humidity
  • Q. Which of the following is/are correct in matching the layer of atmosphere and its characteristic ? I. Troposphere : weather phenomena II. Stratosphere : ozone layer III. Ionosphere : radio waves reflected to earth’s surface IV. Mesosphere : Aurorae
    A)II and III
    B)I, II, III and IV
    C)I, II and IV
    D)I, II and III
    Answer: I, II and III
  • Q. The monsoon has well-developed cycle in ________
    A)East United States
    B)South and South East Asia
    C)North Australia
    D)Africa
    Answer: South and South East Asia
  • Q. Which one of the following conditions is not necessary for precipitation to occur?
    A)The air must be cooled below its dew point
    B)The air must be warm
    C)The air must be saturated
    D)The air must contain hygroscopic particles
    Answer: The air must be warm

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