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
Pressure difference at two localities is created by
  • A
    Unequal heating
    Correct
  • B
    Latitude difference
  • C
    Altitude difference
  • D
    Moisture difference
2
During floods boiled water should be used to
  • A
    Prevent the fowl smell
  • B
    Kill the aquatic organism
  • C
    Prevent misuse of drinking water
  • D
    Prevent water born disease
    Correct
3
Warm air is ---------- than cold air.
  • A
    Heavier
  • B
    Lighter
    Correct
  • C
    Neither lighter nor heavier
  • D
    Same
4
Lightening occurs when negatively changed clouds come in contact of
  • A
    Positively charged clouds
    Correct
  • B
    Negatively charged clouds
  • C
    High energy containing clouds
  • D
    Neutral clouds
5
Wind mill is used to
  • A
    Generate electricity
    Correct
  • B
    Measure wind speed
  • C
    Measure wind direction
  • D
    Produce high speed wind
6
Skyscrapers contain _____________ to prevent lightening at the top of building.
  • A
    Lightening rod
    Correct
  • B
    Rain gauze
  • C
    Earth wire
  • D
    Insulators
7
In cyclone hit area, as preventive measure
  • A
    People should be displaced at far places.
  • B
    Houses should be multi-storey
  • C
    House should be made of bamboo
  • D
    Multipurpose cyclone centres should be constructed
    Correct
8
In India monsoon wind blows in south west direction during
  • A
    Winter
  • B
    Summer
    Correct
  • C
    Autumn
  • D
    Whole year
9
Air convection is set up due to
  • A
    Latitude difference
  • B
    Equatorial position
  • C
    Pressure difference
    Correct
  • D
    Altitude difference
10
Which state of India is badly affected by cyclone recently?
  • A
    Karnataka
  • B
    Jharkhand
  • C
    Bihar
  • D
    Orissa
    Correct
11
High speed winds are accompanied by
  • A
    Low temperature
  • B
    High temperature
  • C
    Increased air pressure
  • D
    Reduced air pressure
    Correct
12
Smoke goes up because
  • A
    Cold air is lighter than warm air
  • B
    Warm air is heavier than cold air
  • C
    Warm air is lighter than cold air
    Correct
  • D
    Cold and warm air are of same mass
13
Which part of earth receives the maximum amount of solar energy?
  • A
    Equator
    Correct
  • B
    Tropic of cancer
  • C
    Sub-equator
  • D
    Poles
14
In winter, winds blows from
  • A
    Poles to equator
  • B
    Ocean to land
  • C
    Land to ocean
    Correct
  • D
    Mid ocean to deeper ocean
15
When cold water is poured over hot tin cane, it get distorted due to
  • A
    High pressure out side and low pressure inside
    Correct
  • B
    Low pressure inside
  • C
    High pressure inside
  • D
    High pressure inside and low pressure out side