Class 03 EVS Air And Water CBSE Questions & Answers

Class 3 · EVS Air And Water

This is EVS class 03 EVS Air and Water CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The burning of fossil fuels produces harmful
  • A
    Nitrogen
  • B
    Smoke
    Correct
  • C
    Fog
  • D
    Smog
2
There is acute water shortage due to
  • A
    Excess evaporation
  • B
    Overuse and misuse
    Correct
  • C
    Global warming
  • D
    Climate change
3
Contents of water vapour in air depends on
  • A
    Location and time
  • B
    Location and temperature
    Correct
  • C
    Time and altitude
  • D
    Place and temperature
4
Total water is maintained by
  • A
    Condensation
  • B
    Evaporation
  • C
    Rain
  • D
    Water cycle
    Correct
5
The image below is cause of
Question 5 figure 1
  • A
    Soil pollution
  • B
    Water pollution
  • C
    Air pollution by factories
    Correct
  • D
    Air pollution by vehicles
6
Which of the following is present in polluted air
  • A
    Oxygen and nitrogen
  • B
    Carbon dioxide and oxygen
  • C
    Water vapour and dust particles
  • D
    Poisonous gas and dust particles
    Correct
7
In which season water scarcity is most acute?
  • A
    Rainy season
  • B
    Summer season
    Correct
  • C
    Autumn season
  • D
    Winter season
8
The device shown below is called
Question 8 figure 1
  • A
    Wind mill
    Correct
  • B
    Diesel engine
  • C
    Electrical mill
  • D
    Water mill
9
Clouds are
  • A
    Water vapour only
  • B
    Water drops in air
  • C
    Mixture of dust and water vapour
    Correct
  • D
    Tiny ice particles floating in air
10
Which of the following given to patient suffering from respiratory problems?
  • A
    Oxygen mask
    Correct
  • B
    Helium mask
  • C
    Carbon dioxide mask
  • D
    Nitrogen mask
11
Wells are fed by
  • A
    Ground water
    Correct
  • B
    Pond water
  • C
    Lake water
  • D
    Rain water
12
Which one is the major cause of water pollution?
  • A
    Agriculture
  • B
    Bathing and washing
  • C
    Industries
  • D
    Untreated sewage
    Correct
13
Water bodies shown below is generally polluted due to
Question 13 figure 1
  • A
    Vehicles
  • B
    Untreated sewage
    Correct
  • C
    Washing floor
  • D
    Excessive rain
14
Presence of harmful particle in air is called
  • A
    Air cycle
  • B
    Air pollination
  • C
    Air pollution
    Correct
  • D
    Fragmentation
15
Air is found
  • A
    In empty vessels
  • B
    Above sea level only
  • C
    In holes only
  • D
    Everywhere
    Correct