Q. The most important factor in thunderstorms development is ________

Correct Answer

Atmospheric instability

More Questions on Atmosphere

  • 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
  • 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. Doldrums are ________
    A)High pressure areas on mountains
    B)High latitudes with heavy snow
    C)Equatorial zone with low pressure
    D)Sub-polar zone with high pressure
    Answer: Equatorial zone with low pressure
  • 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. Density of the Earth’s atmosphere is highest in the
    A)Mesosphere
    B)Troposphere
    C)Stratosphere
    D)Ionosphere
    Answer: Troposphere
  • 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. Countries favourably influenced by Westerlies are ________
    A)New Zealand
    B)Western Europe, British Columbia and East of U.S.A.
    C)South-West Africa and South Chile
    D)All of these
    Answer: All of these
  • Q. Which of the following statements is/are correct? 1. Cyclone is a low pressure system. 2. The wind movement is clockwise in the cyclone of northern hemisphere. Select the correct answer using the code given below ________
    A)Both 1 and 2
    B)1 only
    C)2 only
    D)Neither 1 nor 2
    Answer: Both 1 and 2
  • Q. Which of the following is located at the minimum height from the Earth?
    A)Thermosphere
    B)Stratosphere
    C)Mesosphere
    D)Troposphere
    Answer: Troposphere
  • 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. 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. At low elevation which among the following clouds are to be found ?
    A)Cumulus
    B)Cirrus
    C)Nimbus
    D)Stratus
    Answer: Nimbus
  • Q. Which of the following statements characterize the anticyclones? 1. Anticyclones are low pressure systems. 2. They are characterized by divergent wind circulation. 3. They are indicative of dry weather conditions. Select the correct answer using the codes given below
    A)1, 2 and 3
    B)2 and 3
    C)1 and 3
    D)1 only
    Answer: 2 and 3
  • Q. Which of the following are the ideal conditions for the phenomenon of temperature inversion to occur? I. Long nights II. Cloudy sky III. Calm and stable air IV. Dry air
    A)II, III and IV
    B)I and II
    C)I, II and III
    D)I, III and IV
    Answer: I, III and IV
  • 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 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. Lapse rate is related to the decrease of ________
    A)Temperature at 1°F for an ascent of 330 feet
    B)Wind velocity with an ascent of 300 feet
    C)Humidity with an ascent of 450 feet
    D)Pressure with an ascent of 500 feet
    Answer: Temperature at 1°F for an ascent of 330 feet
  • Q. Anticyclones are caused by ________
    A)Winds that blow spirally outwards from the centre
    B)Violent winds
    C)Heavy rainfall
    D)Winds that blow spirally inwards
    Answer: Winds that blow spirally outwards from the centre
  • 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
  • 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

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