NCERT Solutions | Class 7 Science Chapter 16 | Water: A Precious Resource

CBSE Solutions | Science Class 7

Check the below NCERT Solutions for Class 7 Science Chapter 16 Water: A Precious Resource Pdf free download. NCERT Solutions Class 7 Science were prepared based on the latest exam pattern. We have Provided Water: A Precious Resource Class 7 Science NCERT Solutions to help students understand the concept very well.

NCERT | Class 7 Science

NCERT Solutions Class 7 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	7th
Subject:	Science
Chapter:	16
Chapters Name:	Water: A Precious Resource
Medium:	English

Water: A Precious Resource | Class 7 Science | NCERT Books Solutions

You can refer to MCQ Questions for Class 7 Science Chapter 16 Water: A Precious Resource to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

ncert science class 7 Chapter 16, Question 1.

Mark ‘T if the statement is true and F’ if it is false:
(а) The freshwater stored in the ground is much more than that present in the rivers and lakes of the world. (T/F)
(b) Water shortage is a problem faced only by people living in rural areas. (T/F)
(c) Water from rivers is the only source for irrigation in the fields. (T/F)
(d) Rain is the ultimate source of water. (T/F)

ncert class 7 science Chapter 16 question answer, Answer :

(a) T
(b) F
(c) F
(d) T

ncert science class 7 pdf free download, Question 2.

Explain how groundwater is recharged?

cbse science class 7 solutions, Answer :

The rainwater and water from other sources such as rivers and ponds seeps through the soil and fills the empty spaces and cracks deep below the ground. The process of seeping water into the ground is called infiltration. The groundwater thus gets recharged by this process.

ncert science class 7 solutions, Question 3.

There are ten tube wells in a lane of fifty houses. What could be the long-term impact on the water table?

ncert class 7 science Chapter 16 question answer, Answer :

A huge amount of water will be pumped out from these ten tube wells and it will result in the depletion of the groundwater. Consequently, the water table will go deeper and deeper with time and in the longer-term, it will affect the availability of water in that area.

ncert science class 7 textbook pdf, Question 4.

You have been asked to maintain a garden. How will you minimize the use of water?

cbse science class 7 solutions, Answer :

The use of water can be minimized by:

using drip irrigation.
preventing the leakage in the drains in the delivery pipes.
filling the burrows of snakes and rats.
protecting the boundaries of the field from breakage.

NCERT Solutions for Class 7 Science, Question 5.

Explain the factors responsible for the depletion of the water table.

ncert class 7 science Chapter 16 question answer, Answer :

There are three main causes of depletion of the water table.
(i) Increasing population:
The increasing population creates demand for the construction of houses, shops, offices, roads, and pavements. This decreases the open areas like parks and playgrounds. This, in turn, decreases the seepage of rainwater into the ground. Moreover, a huge amount of water is required for construction work. Often groundwater is used for this purpose. So, on the one hand, we are consuming more groundwater whereas, on the other hand, we are allowing lesser water to seep into the ground. This results in depletion of the water table.

(ii) Increasing industries:
Water is used by all industries. Almost everything that we use needs water somewhere in its production process. The number of industries is increasing continuously. Water used by most industries is drawn from the ground.

(iii) Agricultural activities:
A majority of farmers in India depend upon rains for irrigating their crops. Irrigation systems jUcîi Cl’îs equals are there only in a few places. Even these systems may suffer from a lack of water due to erratic rainfall. Therefore, farmers have to use groundwater for irrigation. The increased use of groundwater day by day results in depletion of the water table.

NCERT Solutions for Class 7 Science Chapter 16, Question 6.

Fill in the blanks with the appropriate answers:

People obtain groundwater through ……. and ……….
Three forms of water are …….,……. and ……….
The water-bearing layer of the earth is ………..
The process of water seepage into the ground is called ………..

cbse science class 7 solutions, Answer :

tubewells, hand pumps
solid, liquid, gas
aquifer
infiltration

science class 7 Chapter 16, Question 7.

Which one of the following is not responsible for water shortage?
(i) Rapid growth of industries
(ii) Increasing population
(iii) Heavy rainfall
(iv) Mismanagement of water resources

ncert class 7 science Chapter 16 question answer, Answer :

(iii) Heavy rainfall.

science class 7 pdf, Question 8.

Choose the correct option.
The total water
(i) in the lakes and rivers of the world remains constant
(ii) under the ground remains constant
(iii) in the seas and the oceans of the world remains constant
(iv) of the world remains constant.

cbse science class 7 solutions, Answer :

(iv) of the world remains constant.

cbse class 7 science book, Question 9.

Make a sketch showing the groundwater and water table. Label it.

ncert class 7 science Chapter 16 question answer, Answer :