NCERT Class 7 Science Chapter 16 Water: A Precious Resource Extra Questions and Answers
Class 7 Science Chapter 16 Extra Questions and Answers – Water: A Precious Resource. Here in this Page Class VII Students can Learn Extra Questions & Answer 16th Chapter Science fully Inside.
We Provided Here Water: A Precious Resource Science Chapter 16 Long Answer Type Question, Very Short Type Questions (VSA) / MCQ Type Questions, Short Type Questions (SA).
Class 7 Science Chapter 16 Extra Question with Answer – Water: A Precious Resource
Science Chapter 16 Water: A Precious Resource Class 7 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers.
1) Fill in the blanks:
a) ___ is essential for all living beings. (Water)
b) ___ % of the earth’s surface is covered with water. (71)
c) People obtain groundwater through ___ and ___. (Wells and tube wells)
2) Multiple choice questions:
a) ___ is celebrated as the World Water Day?
a) 22 April b) 22 May c) 22 March
Ans. c) 22 March
b) Which one is not responsible for water shortage?
a) Increasing population b) Heavy rainfall
Ans. b) Heavy rainfall
c) The water bearing layer of the earth is ___?
a) Aquifer b) Water table
Ans. a) Aquifer
3) Answer the following question:
a) What are the causes for water shortage?
Ans. Rapid growth of industries, increasing population, growing irrigation requirements and mismanagement are the causes for water shortage.
b) How many forms of water are there? What are they?
Ans. There are 3 forms of water. They are solid, liquid and vapor.
c) What is groundwater? What is infiltration?
Ans. The water found below the water table is called groundwater.
The process of seeping of water into the ground is called infiltration.
d) What was the traditional way of collecting water? What is drip irrigation?
Ans. Bawris was the traditional way of collecting water.
Drip irrigation is a technique of watering plants by making use of narrow tubings which deliver water directly at the base of the plant.
4) We have seen that most of the water that we get as rainfall just flows away. This is a waste of precious natural resource. The rainwater can be used to recharge the groundwater. This is referred to as water harvesting or rainwater harvesting.
a) The ___ can be used to recharge the groundwater. (Rainwater)
b) What is water harvesting?
Ans. The water harvesting is the technique of collecting and storing rainwater for several uses.
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