NCERT Class VII Science Solutions: Chapter 16-Water: A Precious Resource Part 1 (For CBSE, ICSE, IAS, NET, NRA 2023)

Doorsteptutor material for CBSE/Class-7 is prepared by world's top subject experts: get questions, notes, tests, video lectures and more- for all subjects of CBSE/Class-7.


Question 1:

Which of the following does not show water shortage?

  1. Taps running dry.
  2. Long queues for getting water.
  3. Marches and protests for demand of water.
  4. A family gets three buckets of water per person per day.

Answer: D

Question 2:

Seas and oceans are full of water on earth. However, a very small percentage of water present on earth is available for us. This percentage is roughly

Answer: A

Question 3:

Which of the following are not the liquid forms of water?

  1. Snow
  2. Lake water
  3. River water
  4. Water vapour
  5. Ice

Choose the correct combination from the options below.

  1. (i) , (iv) and (v)
  2. (i) and (ii)
  3. (ii) and (iii)
  4. (iv) only

Answer: A

Question 4:

A man digging the ground near a water body found that the soil was moist. As he kept digging deeper and deeper he reached a level where all the spaces between particles of soil and gaps between rocks were filled with water. The upper limit of this layer is called

  1. Water level.
  2. Water table.
  3. Ground water.
  4. Water limit.

Answer: B

What is Water Table

Question 5:

Which of the following is a way to use water economically?

  1. Construction of bawris
  2. Rainwater harvesting
  3. Drip irrigation
  4. Infiltration

Answer: C

Drip Irrigation

Question 6:

On which of the following day is World Water Day observed?

  1. 22 March
  2. 14 November
  3. 2 October
  4. 21 December

Answer: A