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
Which disease is caused by drinking of contaminated water
  • A
    Diarrhea
    Correct
  • B
    Tuberculosis
  • C
    Cancer
  • D
    Rabies
2
which if the following does not show water shortage?
  • A
    A family gets three buckets of water per day
    Correct
  • B
    Taps queues for getting water
  • C
    long ques protest for demand of water
  • D
    marches and protest for demand of water
3
In cities, water supply is through
  • A
    Series of wells
  • B
    Storage tanks
  • C
    Tankers only
  • D
    Networks of pipes
    Correct
4
The water found below the water table is called
  • A
    Surface water
  • B
    Litho water
  • C
    Ground water
    Correct
  • D
    Water level
5
Ground water get recharge by the process of
  • A
    Infiltration
    Correct
  • B
    Osmosis
  • C
    Transpiration
  • D
    Respiration
6
Water in the aquifers can be usually pumped out with the help of
  • A
    Well and ponds
  • B
    Rivers and lakes
  • C
    Tube wells and hand pumps
    Correct
  • D
    Ponds and lakes
7
Earth appear blue because
  • A
    Two-third of earth is covered by land
  • B
    Two-third of earth is covered by water
    Correct
  • C
    One-half of earth is covered by land
  • D
    One-half of earth is covered by water
8
seas and oceans are full of water on earth .However, avery small percentage of water present on the earth is available for us. This percentage is roughly
  • A
    0.06%
  • B
    0.6%
  • C
    0.006%
    Correct
  • D
    6%
9
Which two processes return the water to atmosphere for water cycle?
  • A
    Transpiration and respiration
  • B
    Transpiration and evaporation
    Correct
  • C
    Respiration and photosynthesis
  • D
    Evaporation and photosynthesis
10
We should not use ponds water for drinking without treating it because ponds water may be
  • A
    Contaminated
    Correct
  • B
    High salt containing
  • C
    Devoid of minerals
  • D
    Poisonous
11
which one of the folloeing is not responsible for water shortage?
  • A
    Heavy rainfall
    Correct
  • B
    heavy rainfall
  • C
    rapid geowth of industries
  • D
    increasing population
12
Water is called as “Universal Solvent” because
  • A
    It is present everywhere on earth
  • B
    It is present in cells of living organisms
  • C
    It is used to dissolve sugar and salt
  • D
    It dissolve all substance required by living organism
    Correct
13
In plants leaves small pores are present through which transpiration takes place. These pores are called
  • A
    Stomata
    Correct
  • B
    Guard cells
  • C
    All of these
  • D
    Transpiratory pores
14
Which metabolic process of human being also contributes in water cycling?
  • A
    Digestion
  • B
    Respiration
    Correct
  • C
    Transportation
  • D
    Photosynthesis
15
If a person consumes contaminated water, he may suffer from the disease called
  • A
    Jaundice
    Correct
  • B
    Malaria
  • C
    Tuberculosis
  • D
    Skin disease