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
Air expands on
  • A
    Condensing
  • B
    Cooling
  • C
    Heating
    Correct
  • D
    Freezing
2
Rapid expansion of air due to lightening cause
  • A
    Thunder
    Correct
  • B
    Cyclone
  • C
    Flood
  • D
    All of these
3
Which of the following part of India is generally not affected by cyclone?
  • A
    Eastern costal region
  • B
    Southern region
    Correct
  • C
    Northern region
  • D
    Eastern region
4
Wind air is generated due to
  • A
    Condensation of hot air
  • B
    Cooling down of earth
  • C
    Even heating of earth
  • D
    Uneven heating of earth
    Correct
5
High speed wind can be destructive due to
  • A
    Large amount of potential energy
  • B
    Small amount of kinetic energy
  • C
    Large amount of kinetic energy
    Correct
  • D
    Low amount of potential energy
6
Sudden occurrence of light due to friction of clouds is called
  • A
    Lightening
    Correct
  • B
    Flood
  • C
    Storm
  • D
    Cyclone
7
Wind speed results in storm, which can be
  • A
    Used to rotate wind mill
  • B
    Used to produce electricity
  • C
    Highly useful
  • D
    Highly destructive
    Correct
8
During flood, contamination of water causes shortage of
  • A
    Food
  • B
    Shelter
  • C
    Bathing water
  • D
    Drinking water
    Correct
9
For escape of hot air room has
  • A
    Doors
  • B
    High walls
  • C
    Windows
  • D
    Ventilators
    Correct
10
Building can be protected from lightening by using
  • A
    Lightening rod on the levels of building
  • B
    Wooden logs at the top of building
  • C
    Lightening rod at the top of building
    Correct
  • D
    All of these
11
Violent storms accompanied by high wind speed is called
  • A
    Storm
  • B
    Hurricane
  • C
    Cyclone
    Correct
  • D
    Cloud burst
12
The eye of storm is a
  • A
    High velocity storm area
  • B
    Highly active area
  • C
    Calm area
    Correct
  • D
    Heavy rain area
13
Cold air is _______________ than warm air.
  • A
    Lighter
  • B
    Less denser
  • C
    Less moist
  • D
    Heavier
    Correct
14
Humidity in air is maximum in
  • A
    Summer
  • B
    Monsoon
    Correct
  • C
    Autumn
  • D
    Winter
15
Rows of trees grown along the coastal areas to reduce the impact of cyclones are known as
  • A
    Shelter break
  • B
    Protection
  • C
    Wind break
  • D
    Mangroves
    Correct