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
Passing chlorine gas through drinking water to disinfect it is called
  • A
    Chlorination
    Correct
  • B
    Cleaning
  • C
    Sterilization
  • D
    Aeration
2
Which one of the following is not responsible for shortage of water?
  • A
    Mismanagements of water
  • B
    Heavy rainfall
    Correct
  • C
    Increasing population
  • D
    Increasing industries
3
Main reason for decrease in water table is
  • A
    Heavy rain fall
  • B
    Deforestation
  • C
    Excessive consumption of ground water
    Correct
  • D
    Frequent drought
4
World Health Organization had declared _____________ as international year of fresh water.
  • A
    2001
  • B
    2011
  • C
    2013
  • D
    2003
    Correct
5
The process of seeping of water into the ground is called
  • A
    Purification
  • B
    Infiltration
    Correct
  • C
    Chlorination
  • D
    Sedimentation
6
The water which is fit for human use is called
  • A
    Ground water
  • B
    Sea water
  • C
    Fresh water
    Correct
  • D
    Hard water
7
Most of the water present on earth is present on/in
  • A
    River
  • B
    Ponds
  • C
    Lakes
  • D
    Poles as ice
    Correct
8
Which sector is measure user of water in India?
  • A
    Textile sector
  • B
    Petrochemical sector
  • C
    Agricultural sector
    Correct
  • D
    Leather sector
9
Water in converted into water vapour by the process of
  • A
    Transpiration and evaporation
    Correct
  • B
    Respiration and photosynthesis
  • C
    Transportation and respiration
  • D
    Only evaporation
10
Water table is _____________ at different the places on earth.
  • A
    May be equal
  • B
    Same
  • C
    Equal
  • D
    Different
    Correct
11
Bawris was the
  • A
    Type of purifying water
  • B
    Type of traditional dance
  • C
    Traditional way of removing salinity
  • D
    Traditional way of collecting water
    Correct
12
Water-wise habits includes
  • A
    Wash the flour one time in a day
  • B
    Drinking water properly
  • C
    Bath with one bucket of water
  • D
    Turns of taps while brushing
    Correct
13
Which one is a correct statement?
  • A
    Osmosis cause water movement
  • B
    Transpiration takes place through root
  • C
    Water is natural resource
    Correct
  • D
    Water-vapour condense of heating
14
Most liquids contracts on freezing but water
  • A
    Contracts of freezing
  • B
    Both contract and expand
  • C
    Remain same on freezing
  • D
    Expands on freezing
    Correct
15
Water shortage has became a matter of concern throughout the
  • A
    Kerala
  • B
    Delhi
  • C
    World
    Correct
  • D
    India