NCERT Solutions for Class 7 Science Chapter 16 Water A Precious Resource

 

NCERT solutions for class 7 science chapter 16 Water A Precious Resource: Water is a precious resource and using it carefully is an important thing. What is groundwater? What are the causes of depletion of the water table? These questions are answered with the help of solutions of NCERT for class 7 science chapter 16 water a precious resource. Topics like how much water is available for use in the earth, what is the amount of rainfall in different regions of India, how water scarcity affects the plant etc are discussed in the chapter. The CBSE NCERT solutions for class 7 science chapter 16 water a precious resource help in the preparation of exams. For class 7 students who are following NCERT syllabus, the solutions of NCERT for all the subject help in their studies. NCERT solutions for class 7 science chapter 16 water a precious resource give an explanation to nine exercise questions.

NCERT solutions for class 7 science chapter 16 water a precious resource exercise

2. Explain how groundwater is recharged?

Answer:

The rainwater and water from water bodies get accumulated in the aquifer deep underground. Then there are some rocks which prevent further sinking of water.

In this way, groundwater is recharged.

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

Answer:

If they will draw water from the ground more than the rechargeable amount for the long term then the water table will go down.

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

Answer:

Drip irrigation method will be very efficient in this case as water is required in good quantity for the plants.

So we can save a lot of water by this method.

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

Answer:

The main factors responsible for the depletion of the water table are:- 

(i)  Increasing population so higher consumption.

(ii)  Increasing industries

(iii)  Agricultural activities

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

Answer:

Heavy rainfall cannot be responsible for water shortage. Instead if stored properly it can increase the groundwater level.

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

Answer:

The required sketch is shown below:- 

 

      

Chapterwise NCERT solutions of class 7 science:

Chapter No.

Chapter Name

Chapter 1  

NCERT solutions for class 7 science chapter 1 Nutrition in Plants

Chapter 2

Solutions of NCERT class 7 science chapter 2 Nutrition in Animals

Chapter 3

CBSE NCERT solutions for class 7 science chapter 3 Fibre to Fabric

Chapter 4

NCERT solutions for class 7 science chapter 4 Heat

Chapter 5

Solutions of NCERT class 7 science chapter 5 Acids Bases and Salts

Chapter 6

CBSE NCERT solutions for class 7 science chapter 6 Physical and Chemical Changes

Chapter 7

NCERT solutions for class 7 science chapter 7 Weather Climate and Adaptations of Animals to Climate

Chapter 8

Solutions of NCERT class 7 science chapter 8 Winds storms and cyclones

Chapter 9

CBSE NCERT solutions for class 7 science chapter 9 Soil

Chapter 10

NCERT solutions for class 7 science chapter 10 Respiration in Organisms

Chapter 11

Solutions of NCERT class 7 science chapter 11 Transportation in Animals and Plants

Chapter 12

CBSE NCERT solutions for class 7 science chapter 12 Reproduction in Plants

Chapter 13

NCERT solutions for class 7 science chapter 13 Motion and Time

Chapter 14

Solutions of NCERT class 7 science chapter 14 Electric Current and its Effects

Chapter 15

CBSE NCERT solutions for class 7 science chapter 15 Light

Chapter 16

NCERT solutions for class 7 science chapter 16 Water A Precious Resource

Chapter 17     Solutions of NCERT class 7 science chapter 17 Forests Our Lifeline

Chapter 18

CBSE NCERT solutions for class 7 science chapter 18 Wastewater Story

NCERT Solutions for Class 7 Subject Wise:

NCERT Solutions for Class 7 Maths

CBSE NCERT Solutions for Class 7 Science

Benefits of NCERT solutions for class 7 science chapter 16 water a precious resource:

  • The solutions of NCERT class 7 science chapter 16 water precious resources help in revising the concepts studied in the chapter.
  • The NCERT solutions for class 7 science chapter 16 water precious resources help in solving homework questions.
 

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