Class 7 Winds Storms And Cyclones CBSE Questions & Answers

Class 7 · Winds Storms And Cyclones

This is Science Class 7 Winds Storms and Cyclones CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Rows of trees grown along the coastal areas to reduce the impact of cyclones are known as
  • A
    Protection
  • B
    Mangroves
    Correct
  • C
    Wind break
  • D
    Shelter break
2
Cyclone is also known as
  • A
    Tsunamis
  • B
    Storms
  • C
    Thunder
  • D
    Hurricanes
    Correct
3
Swift movements of falling water and rising air create
  • A
    Low pressure
  • B
    Cyclone
  • C
    Heavy rain
  • D
    Lightening and sound
    Correct
4
The centre of cyclone is a calm area called
  • A
    Nucleus of storm
  • B
    Eye of the storm
    Correct
  • C
    Axis of storm
  • D
    Nucleolus of storm
5
Cyclone do not affects the
  • A
    Electricity supply
  • B
    Climate or weather
    Correct
  • C
    Agriculture
  • D
    Telecommunication
6
The monsoon has well developed cycle in
  • A
    North Australia
  • B
    South and south east Asia
    Correct
  • C
    Africa
  • D
    East United State
7
A large cyclone is a violently rotating mass of air in the atmosphere at a height of about
  • A
    5 to 8 Km
  • B
    20 to 25 Km
  • C
    10 to 15 Km
    Correct
  • D
    1 to 2 Km
8
Wind blows faster when
  • A
    There is no difference in pressure
  • B
    Moisture in air more
  • C
    Pressure difference between two places is less
  • D
    Pressure difference between two places is more
    Correct
9
Which one of the following is most destructive
  • A
    Storm
  • B
    Tornado
  • C
    Typhoon
  • D
    Cyclone
    Correct
10
Increase in carbon dioxide in air cause
  • A
    Decrease in earth temperature
  • B
    No change in temperature
  • C
    Rise in earth temperature
    Correct
  • D
    Uniform earth temperature
11
Which of the following occurs more frequently in Indian ocean than the others three
  • A
    Hurricanes
  • B
    Cloud burst
  • C
    Tornado
  • D
    Cyclone
    Correct
12
The centre of cyclone is known as
  • A
    Eyes of hurricanes
  • B
    Middle of hurricanes
  • C
    Nose of hurricanes
  • D
    Ear of hurricanes
    Correct
13
In a cyclone, wind speed is about
  • A
    300- 400 Km/h
  • B
    100- 200 Km/h
  • C
    200- 250 Km/h (
    Correct
  • D
    50- 150 Km /h
14
Holes are made in banners and hoarding to
  • A
    Reduce air pressure
    Correct
  • B
    Increase air pressure
  • C
    Make more visible
  • D
    Make more attractive
15
Lightening is generally followed by
  • A
    Rain
  • B
    Cyclone
  • C
    Storm
  • D
    Thunder
    Correct