Class 04 EVS Air And Water CBSE Questions & Answers

Class 4 · EVS Air And Water

This is Science and Social Science (EVS) class 04 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
There is acute water shortage due to
  • A
    Global warming
  • B
    Excess evaporation
  • C
    Climate change
  • D
    Overuse and misuse
    Correct
2
Contents of water vapour in air depends on
  • A
    Place and temperature
  • B
    Location and time
  • C
    Time and altitude
  • D
    Location and temperature
    Correct
3
Total water is maintained by
  • A
    Water cycle
    Correct
  • B
    Rain
  • C
    Condensation
  • D
    Evaporation
4
The image below shows
Question 4 figure 1
  • A
    Water pollution
  • B
    Soil pollution
  • C
    Air pollution by factories
    Correct
  • D
    Air pollution by vehicles
5
Which of the following is present in polluted air
  • A
    Carbon dioxide and oxygen
  • B
    Oxygen and nitrogen
  • C
    Water vapour and dust particles
  • D
    Poisonous gas and dust particles
    Correct
6
In which season water scarcity is most acute?
  • A
    Summer season
    Correct
  • B
    Winter season
  • C
    Rainy season
  • D
    Autumn season
7
The device shown below runs on
Question 7 figure 1
  • A
    Wind
    Correct
  • B
    Electricity
  • C
    Diesel engine
  • D
    Water
8
Decomposition of vegetable matter is called
  • A
    Decomposition
    Correct
  • B
    Sedimentation
  • C
    Fermentation
  • D
    Pollination
9
Clouds are
  • A
    Water drops in air
  • B
    Tiny ice particles floating in air
  • C
    Water vapour only
  • D
    Mixture of dust and water vapour
    Correct
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
    Lake water
  • C
    Pond water
  • D
    Rain water
12
Animals living inside the soil intake oxygen from
  • A
    Water
  • B
    Atmosphere
    Correct
  • C
    Soil
  • D
    Moisture
13
Which one is the major cause of water pollution?
  • A
    Bathing and washing
  • B
    Untreated sewage
    Correct
  • C
    Industries
  • D
    Agriculture
14
Presence of harmful particle in air is called
  • A
    Air pollution
    Correct
  • B
    Air cycle
  • C
    Fragmentation
  • D
    Air pollination
15
The water in our tap comes from
  • A
    River, lake or river
    Correct
  • B
    Only form ponds
  • C
    Only from river
  • D
    Only from lake