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
When water vapour come in contact of cool surface it
  • A
    Condense to water droplets
    Correct
  • B
    Forms dry ice
  • C
    Evaporate into air
  • D
    Change to ice
2
Which of the following is not a use of air?
  • A
    Respiration
  • B
    Photosynthesis
  • C
    Melting of ice
    Correct
  • D
    Winnowing
3
Which one is the major cause of water pollution?
  • A
    Agriculture
  • B
    Bathing and washing
  • C
    Untreated sewage
    Correct
  • D
    Industries
4
Wind mill is used to produce
  • A
    Moisture
  • B
    Water
  • C
    Air
  • D
    Electricity
    Correct
5
Which disease is caused by drinking of contaminated water
  • A
    Cancer
  • B
    Rabies
  • C
    Tuberculosis
  • D
    Diarrhea
    Correct
6
The clothes shown below is used in
Question 6 figure 1
  • A
    Autumn season
  • B
    Rainy season
  • C
    Winter season
    Correct
  • D
    Summer season
7
The water that is fit for human consumption is called
  • A
    Ground water
  • B
    Fresh water
    Correct
  • C
    Sea water
  • D
    River water
8
Wind mills runs on
  • A
    Heat
  • B
    Air
    Correct
  • C
    Water
  • D
    Electricity
9
In cities, water supply is through
  • A
    Series of wells
  • B
    Tankers only
  • C
    Networks of pipes
    Correct
  • D
    Storage tanks
10
Combustion of coal produce
  • A
    Nitrogen
  • B
    Water vapour
  • C
    Carbon dioxide gas
    Correct
  • D
    Oxygen
11
We should not use ponds water for drinking without treating it because ponds water may be
  • A
    Poisonous
  • B
    High salt containing
  • C
    Devoid of minerals
  • D
    Contaminated
    Correct
12
In air which gas have maximum composition?
Question 12 figure 1
  • A
    Helium
  • B
    Carbon dioxide
  • C
    Oxygen
  • D
    Nitrogen
    Correct
13
Which one is the most common cause of contamination of water in rural area?
  • A
    Addition of manure in field near water bodies
  • B
    Soil present around the water bodies
  • C
    Defection in or around water bodies
    Correct
  • D
    Presence of aquatic organisms
14
Which of the following activity does not involve use of water?
  • A
    Washing clothes
  • B
    Drying wet clothes
    Correct
  • C
    Bathing
  • D
    Washing utensils
15
Water vapour changes into water by the process of
  • A
    Sedimentation
  • B
    Condensation
    Correct
  • C
    Evaporation
  • D
    Melting