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20 questions
Cold air rises up while warm air is heavy and sinks down.
True
False
Roofs blowing off in storm is because of high speed winds which create low pressure on outer surface of roof.
True
False
Clear and sunny sky is associated with high pressure.
True
False
Cyclones of American continent are called typhoons.
True
False
Stratosphere contains what layer that protects us from UV rays of Sun?
Air moves from a region of what pressure to a region of low pressure?
Cyclones are a system of what type of pressure?
The centre of a cyclone which is calm is called
Select the odd one out.
Troposphere
Mesosphere
Stratosphere
Hydrosphere
Thermosphere
Select the odd one out.
Twisting funnel
Tornado
Sucks up things
Thunderstorm
Select the odd one out.
Cyclone
Tornado
Typhoon
Hurricane
Select the odd one out.
Cyclone watch
Cyclone alert
24 hours
48 hours
Winds are generated due to
even heating of Earth
uneven heating of Earth
Which is not an example of air exerting pressure?
Blowing air in a balloon makes it expand.
A car runs due to air.
Blowing air can move leaves, clothes.
Smoke detectors/ fire alarms are placed
on the floor
near the door
on a wall
on the ceiling
What happens during a thunderstorm?
Rain
Lightning and sound of thunder
Strong winds
All of the above
On heating, air expands and
becomes lighter
rises up
its volume increases and density decreases
All of the above
Which of the following is least violent and causes least damage?
Depressions
Hurricanes
Cyclones
Typhoons
Which of the following is not a precaution against a cyclone?
Construction of cyclone shelters in cyclone prone areas.
Ignoring warnings given by government.
Do not touch wet switches and fallen power lines.
Drink only safe water.
Which of the following areas is least likely to be affected by a cyclone?
Delhi
Orissa
Chennai
West Bengal
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