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 NCERT solutions 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 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 NCERT solutions 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. Students are recommended to go through NCERT solutions for class 7 to score high marks in their examination.
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NCERT solutions for class 7 science chapter 16 water a precious resource exercise
1. Mark ‘T’ if the statement is true and ‘F’ if it is false:
Answer:
(a) True
(b) False
(c) False
(d) True
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.
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
6. Fill in the blanks with the appropriate answers:
- (a) People obtain groundwater through________ and ________.
- (b) Three forms of water are ________, ________ and ________.
- (c) The water bearing layer of the earth is ________.
- (d) The process of water seepage into the ground is called ________.
Answer:
(a) tube wells and hand pumps
(b) ice, water and vapour
(c) aquifer
(d) infiltration
7. Which one of the following is not responsible for water shortage?
Answer:
Heavy rainfall cannot be responsible for water shortage. Instead if stored properly it can increase the groundwater level.
8. Choose the correct option. The total water
Answer:
The total water of the world remains constant.
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:
NCERT Solutions for Class 7 Subject Wise:
Benefits of NCERT solutions for class 7 science chapter 16 water a precious resource:
- The NCERT solutions for 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.
Frequently Asked Question (FAQs) - NCERT Solutions for Class 7 Science Chapter 16 Water A Precious Resource
Question: Whether the Class 7 Science chapter 16 water a precious resource is useful in higher studies ?
Answer:
Yes, this chapter is very important for higher studies in the field of science and environment
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