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Class 7 Science
Winds, Storms And Cyclones
Quiz 1
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In which year was Orissa hit by a cyclone?
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1999
0%
2000
0%
2001
0%
2004
Explanation
1999
Leaves of trees, banner or flags flutter when wind is blowing. Why?
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Air occupies space
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Air is a mixture of gases
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Air exerts pressure
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Air is colourless
Explanation
Air exerts pressure
When we blow over a paper strip it goes upward as shown in the figure given below. why?
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Blowing over the paper reduces the air pressure above the strip
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Blowing over the paper increases the air pressure above the strip
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None of these is a correct reason
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The strip will not go upward at all
Explanation
Blowing over the paper reduces the air pressure above the strip
Which of the following places is most likely to be affected by a cyclone?
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Mumbai
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Puri
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Goa
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Porbandar
Explanation
Puri
A fire alarm usually detects smoke in case of fire. Where should such an alarm be placed in a room? (NCERT Exemplar)
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Near the door
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On the floor
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On any wall
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On the ceiling
Explanation
On the ceiling
The winds from oceans carry water and bring rain. These winds are called
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typhoon
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monsoon
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cyclone
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none of these
Explanation
monsoon
What is a cyclone?
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Winds from the oceans carrying water
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Very low pressure system with very high speed winds revolving around it
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Dark funnel shaped cloud that reaches from the sky to the ground
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None of these
Explanation
Very low pressure system with very high speed winds revolving around it
Pick the odd one out
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Cyclone
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Hurricane
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Monsoon
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Typhoon
Explanation
Monsoon
A cyclone warning can be issued
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48 hours in advance
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12 hours in advance
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6 hours in advance
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24 hours in advance
Explanation
24 hours in advance
0 h : 0 m : 1 s
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