7th Class Science Winds, Storm and Cyclones Question Bank

done Winds Storms and Cyclones Total Questions - 20

• question_answer1)
  Which of the following statements is correct?
  A)
   Air moves from the region of low pressure to high pressure.          done clear
  B)
   Air moves from the region of high pressure to low pressure.           done clear
  C)
   Air movement does not depend upon the pressure.                    done clear
  D)
   Air moves from the region of low pressure to low pressure.           done clear
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• question_answer2)
  The weak zones around the boundaries of plates underneath the Earth, which are prone to slide and cause earthquake are commonly known as
  A)
   Fault zone done clear
  B)
   Eruption zone done clear
  C)
   Explosive zone done clear
  D)
   Sliding zone. done clear
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• question_answer3)
  The factor(s) responsible for cyclones is/ar

  (i)  Wind speed

  (ii) Temperature

  (iii) Humidity

   
  A)
  (i) only done clear
  B)
  (ii) and (iii) only done clear
  C)
  (i) and (iii) only done clear
  D)
  (i), (ii) and (iii) done clear
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• question_answer4)
  Which of the following is a correct statement?
  A)
   In winters, the wind flows from the land to the ocean. done clear
  B)
   The coastline of India is not vulnerable to cyclones. done clear
  C)
   A cyclone is formed in a very high-pressure area with very high speed winds revolving around it. done clear
  D)
   None of these done clear
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• question_answer5)
  High speed winds at a place result by
  A)
   Increased pressure done clear
  B)
   Reduced pressure done clear
  C)
   Water vapour done clear
  D)
   Static electricity. done clear
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• question_answer6)
  How does cyclone decrease the fertility of the soil in the coastal areas?
  A)
   By flooding the land with saline water done clear
  B)
   By dissolving soil and rocks done clear
  C)
   By increasing the water table of the place done clear
  D)
   By decreasing the water table of the place done clear
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• question_answer7)
  Which of the following is the first sign of an approaching cyclone?
  A)
   Rain accompanied by lightning done clear
  B)
   Powerful water waves done clear
  C)
   Cool breeze and rain done clear
  D)
   None of these done clear
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• question_answer8)
  During the formation of rain, when water vapour changes back to liquid in the form of rain drops,
  A)
   Heat is absorbed done clear
  B)
   Heat is released done clear
  C)
   Heat is absorbed first and then released done clear
  D)
   There is no exchange of heat. done clear
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• question_answer9)
  A tornado is
  A)
   Uneven heating between two regions done clear
  B)
   A violent, twisting funnel of wind done clear
  C)
   Strong circulatory winds in the tropical region done clear
  D)
   None of these done clear
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• question_answer10)
  Which of the following is correct?
  A)
   The seasonal winds that bring rain when they blow from sea to land during summer and winter are monsoon winds. done clear
  B)
   Anemometer measures the direction of wind. done clear
  C)
   A wind vane measures the speed of wind. done clear
  D)
   Atmospheric pressure increases at high altitude. done clear
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• question_answer11)
  Which of the following actions is not safe at all in a thunderstorm?
  A)
     done clear
  B)
     done clear
  C)
                  done clear
  D)
   None of these done clear
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• question_answer12)
  What would happen if the Earth did not rotate on its axis?
  A)
   All winds would blow curved and deflected at equator only. done clear
  B)
   All winds would not blow curved and deflected at poles only.             done clear
  C)
   All winds would blow straight from high pressure to low pressure area and die when the pressure equalized. done clear
  D)
   All winds would blow straight from low pressure to high pressure area and die when the pressure is equalized. done clear
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• question_answer13)
  Which of the following pictures shows a tornado?
  A)
                     done clear
  B)
    done clear
  C)
               done clear
  D)
           done clear
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• question_answer14)
  When high speed wind blows, an umbrella held upright sometimes get upturned. The reason being
  A)
   High speed wind creates a high pressure zone above and below the umbrella done clear
  B)
   High speed wind creates a low pressure zone above and high pressure zone below the umbrella done clear
  C)
   High speed wind creates a low pressure zone below and high pressure zone above the umbrella done clear
  D)
   None of these done clear
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• question_answer15)
  Which of the following statements is correct?
  A)
   A cyclone warning is issued up to 6 hours in advance by the government. done clear
  B)
   Wind currents are generated due to sea breeze.          done clear
  C)
   A lightning conductor installed in a building repels the lightning. done clear
  D)
   A thunderstorm is accompanied by lightning. done clear
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• question_answer16)
  Low atmospheric pressure exists on the Earth in which of the following latitudes?
  A)
   At the equator only done clear
  B)
   At \[{{30}^{o}}\] North pole and South pole done clear
  C)
   At the poles done clear
  D)
   At the equator and at \[{{60}^{o}}\] North pole and South pole done clear
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• question_answer17)
  Lightning is a stream of flowing electrons. It occurs when

  (i) Charges accumulated on the cloud discharges through it.

  (ii) A huge mass of charged layer of cloud discharges with the Earth.

  A)
   Only (i) is correct. done clear
  B)
   Only (ii) is correct. done clear
  C)
   Both (i) and (ii) are correct. done clear
  D)
   Neither (i) nor (ii) is correct. done clear
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• question_answer18)
  In the figure, bottle is filled with lukewarm water and then emptied and cap was put tightly. Then cold water was poured on it. The shape of the bottle gets distorted. 

  Statement 1: Atmospheric pressure is more than air pressure inside the bottle as the air was driven out.

  Statement 2: Air exerts pressure on surfaces with which it comes in contact.

  A)
   Statement 1 is the conclusion of statement 2. done clear
  B)
   Statement 2 is the conclusion of statement 1. done clear
  C)
   Only statement 1 is correct.    done clear
  D)
   Only statement 2 is correct.    done clear
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• question_answer19)
  Observe the given figure. What do you conclude from this?    
  A)
   Reduced air pressure can lift objects. done clear
  B)
   High wind speed reduces air pressure. done clear
  C)
   Air expands on heating. done clear
  D)
   Atmospheric pressure increases with a decrease in temperature. done clear
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• question_answer20)

  Four glass bottles are kept in four vessels as shown in figure.

  If a balloon is fixed on the mouth of each of the glass bottle, then the balloon will inflate in

     
  A)
  Case (i)           done clear
  B)
  Case (ii)          done clear
  C)
  Case (iii)     done clear
  D)
  Case (iv) done clear
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