Atmosphere Geography

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

Correct Answer

When condensation takes place below 0° C and precipitation occurs in the form of flakes

More Questions on Atmosphere

  • Q. The final boundary between the Earth and the outer space is called
    A)Mesopause
    B)Magnetosphere
    C)Ionosphere
    D)Magnetopause
    Answer: Magnetopause
  • 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 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. 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?
    A)Both 1and 2
    B)1 only
    C)2 only
    D)Neither 1 nor 2
    Answer: Neither 1 nor 2
  • Q. Temperature generally decreases towards the poles because ________
    A)Cold surfaces do not absorb solar energy as readily as warm surfaces
    B)Air movement is generally towards the. equator
    C)Cold polar air masses prevent surface heating of the land
    D)Progressively lesser solar energy per unit area falls on the earth's surface as we move to polar regions
    Answer: Progressively lesser solar energy per unit area falls on the earth's surface as we move to polar regions
  • 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. What is a cloudburst?
    A)It is caused by rapid condensation of very high clouds
    B)It refers to sudden and copious rainfall over a small area which often lasts for only a few minutes
    C)It refers to 50mm rain over a period of time
    D)It refers to a thunderstorm with little rain
    Answer: It refers to sudden and copious rainfall over a small area which often lasts for only a few minutes
  • 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. Which of the following places are favourably influenced by the Trade winds? I. West Indies II. Brazil III. Mexico IV. Madagascar
    A)III and IV
    B)I and II
    C)I, II, III and IV
    D)II and IV
    Answer: I, II, III and IV
  • Q. Winds and air currents differ in the aspect that ________
    A)The winds blow on lands while air currents blow over seas and oceans
    B)Air currents blow much faster than winds
    C)Air currents are always moisture laden while the winds are usually dry
    D)Winds are horizontal movements of air while air currents are the vertical movements of air
    Answer: Winds are horizontal movements of air while air currents are the vertical movements of air
  • Q. Precipitation takes place when ________
    A)Temperature of moisture in air sharply decreases
    B)The sky is overcast with clouds
    C)Temperature of moisture in air suddenly increases
    D)Winds begin to blow in a circular motion
    Answer: The sky is overcast with clouds
  • 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. 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. Consider the following statements regarding the distribution and pattern of isotherms 1. In the northern hemisphere, isotherms bend sharply equator-ward over the continents during winter. 2. Temperature gradients are greater in summer than in winter in the northern hemisphere. 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: 1 only
  • Q. What is the major role of a greenhouse gas that contributes to temperature rise of the Earth’s surface?
    A)Lets outgoing infrared radiation pass through but stops incoming sunlight
    B)Transparent to both incoming sunlight and outgoing infrared radiation
    C)Stops both incoming sunlight and outgoing infrared radiation
    D)Lets incoming sunlight pass through but stops outgoing infrared radiation
    Answer: Lets incoming sunlight pass through but stops outgoing infrared radiation
  • 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. Atmospheric humidity is measured by ________
    A)Lysimeter
    B)Psychrometer
    C)Anemometer
    D)Hydrometer
    Answer: Psychrometer
  • 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. An upper air wind system with very high velocities in certain parts of the atmosphere is called ________
    A)Jet stream
    B)A cyclone
    C)An anticyclone
    D)A tsunami
    Answer: Jet stream
  • Q. Land masses are heated and cooled much faster than water bodies. Identify the true statements in this regard: I. Land gets heated by conduction II. Water has higher specific heat III. Only the surface layers of water are heated IV. Water gets heated by convection
    A)I and IV
    B)I, II and III
    C)II and III
    D)I, II and IV
    Answer: I, II and IV

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