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

Correct Answer

Ionosphere

More Questions on Atmosphere

  • Q. The chemically inactive gas present in the atmosphere is ________
    A)Water vapour
    B)Nitrogen
    C)Argon
    D)Oxygen
    Answer: Argon
  • 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. Why the Earth is having its own atmosphere?
    A)Gravity
    B)Winds
    C)Clouds
    D)Rotation of the Earth
    Answer: Gravity
  • Q. Condensation is a process which occurs when
    A)Temperature in the air parcel remains static
    B)Temperature falls below 0°C
    C)Absolute humidity becomes equal to relative humidity
    D)Relative humidity becomes 100% and more
    Answer: Relative humidity becomes 100% and more
  • Q. The inner-most layer of the Earth is known as
    A)Aesthenosphere
    B)Lithosphere
    C)Mesosphere
    D)Barysphere
    Answer: Barysphere
  • 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 local winds is not characteristically hot and dry?
    A)Khamsin
    B)Sirocco
    C)Mistral
    D)Chinook
    Answer: Mistral
  • Q. Which one among the following statements relating to an anticyclone is correct?
    A)The contribution of an anticyclone towards determining weather of an area is quite significant
    B)Anticyclone is a wind system with a high pressure centre
    C)In anticyclone the movement of wind is inward
    D)The movement of wind is clockwise in an anticyclone of southern hemisphere
    Answer: Anticyclone is a wind system with a high pressure centre
  • 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. At which height, the gaseous surrounding has covered the Earth’s atmosphere?
    A)200km
    B)100km
    C)150km
    D)300km
    Answer: 300km
  • Q. The tropical cyclones – Hurricanes and Typhoons – develop and mature ________
    A)Over the water bodies only
    B)At the same place
    C)Over the land masses only
    D)Anywhere in the tropical zone
    Answer: Anywhere in the tropical zone
  • Q. The albedo of which one among the following is the highest?
    A)Melting snow
    B)Cirrus cloud
    C)Cumulonimbus cloud
    D)Sand
    Answer: Cirrus cloud
  • Q. Consider the following statements: 1. Mistral is a cold wind blowing in North America. 2. Sirocco is a hot dry wind blowing across the North African coast. Which of the statement(s) given above is/are correct?
    A)Both 1 and 2
    B)1 only
    C)2 only
    D)Neither 1 nor 2
    Answer: 2 only
  • 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. The Ozone hole is detected in the atmosphere, where is it located?
    A)Above India
    B)Above Arctic Ocean
    C)Above Antarctica
    D)Above Alaska
    Answer: Above Antarctica
  • Q. In which layer, temperature increases dramatically?
    A)Stratosphere
    B)Ionosphere
    C)Exosphere
    D)Troposphere
    Answer: Ionosphere
  • 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. Consider the following statements: 1. Either of the two belts over the oceans at about 30° to 35° N and S Latitudes is known as Horse Latitude. 2. Horse latitudes are low pressure belts. 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. 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. 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

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