Class 7 Water A Precious Resource CBSE Questions & Answers

Class 7 · Water A Precious Resource

This is Science Class 7 Water A Precious Resource CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Ground water between two layers of rocks is called
  • A
    Rain water
  • B
    Water level
  • C
    Water table
  • D
    Aquifer
    Correct
2
World water day is celebrated on
  • A
    22 March
    Correct
  • B
    22 May
  • C
    12 May
  • D
    12 March
3
Water is a/an
  • A
    Mixture
  • B
    Element
  • C
    Compound
    Correct
  • D
    Solution
4
Water is chlorinated to
  • A
    Improve its taste
  • B
    Kill germs
    Correct
  • C
    Change colour
  • D
    Soften it
5
There is acute water shortage due to
  • A
    Global warming
  • B
    Overuse and misuse
    Correct
  • C
    Climate change
  • D
    Excess evaporation
6
What percent of your body weight is water?
  • A
    50%
  • B
    60%
  • C
    70%
    Correct
  • D
    80%
7
Rainwater harvesting is a method of
  • A
    All of these
  • B
    Using rain water for daily purpose
  • C
    Producing water for future use
  • D
    Collecting rainwater and directing into ground
    Correct
8
Which sector is measure user of water in India?
  • A
    Leather sector
  • B
    Textile sector
  • C
    Petrochemical sector
  • D
    Agricultural sector
    Correct
9
There is acute shortage of water due to
  • A
    Pollution of rivers
  • B
    Lack of technique to purify water
  • C
    Melting of ice at poles
  • D
    Growing population and overuse
    Correct
10
In irrigation, which technique reduces the water loss?
  • A
    Canal system
  • B
    Tube well system
  • C
    Planting crops in rainy season
  • D
    Drip irrigation
    Correct
11
Total water is maintained by
  • A
    Rain
  • B
    Water cycle
    Correct
  • C
    Condensation
  • D
    Evaporation
12
In gaseous form water is present in atmosphere as
  • A
    Water vapour
    Correct
  • B
    Water bubbles
  • C
    Ice at poles
  • D
    Hot water
13
Earth appear blue from sky due to presence of
  • A
    Mountains
  • B
    Desert
  • C
    Water
    Correct
  • D
    Land
14
Amount of water recommended by United Nation per person per day is
  • A
    40 litres
    Correct
  • B
    60 litres
  • C
    50 litres
  • D
    30 litres
15
The process of changing water vapour into water is called
  • A
    Condensation
  • B
    Sedimentation
  • C
    Evaporation
    Correct
  • D
    Boiling