Q1: Fill in the blanks
Jaisalmer, lake, Uzbekistan, rainwater, fertile, worship
(i) Sar means a ________________.
(ii) Ghadsisar is in _____________.
(iii) Al- Biruni came from _______________ to India.
(iv) The soil of the area where land soaks water is very _______________.
(v) Some people ______________ the place of water.
(vi) ____________ is a source of water
Ans:
(i) lake
(ii) Jaisalmer
(iii) Uzbekistan
(iv) fertile
(v) worship
(vi) Rainwater
Q2: Match the column:
Ans:
(i) Who made lake Ghadsisar?
Ans: King Ghadsi.
(ii) How many lakes are in Ghadsisar?
Ans: Nine lakes.
(iii) What is the name of the traveler who came to India from Uzbekistan?
Ans: Al- Biruni
(iv) Which place in India gets the highest rainfall?
Ans: Mawsynram (in Assam)
(v) Which place in India gets the lowest rainfall?
Ans: Jaisalmer (in Rajasthan)
(vi) What is the process of collection of rainwater called?
Ans: Rain water harvesting.
(vii) How much water is on the surface of the earth and how much of it is drinking water?
Ans: Nearly 70 percent of the earth is covered with water. Of this, only 2.5 percent is fresh water, and just 1 percent is easily accessible drinking water.
(viii) What did Al- Biruni notice in India?
Ans: Al-Biruni observed that the people of India are skilled at creating ponds for collecting rainwater. They build chabutaras around lakes with long staircases for access.
(ix) Why should we not waste water?
Ans: We should not waste water because only 1 percent is available for our use, and a significant amount is being polluted. Additionally, rainfall has decreased, leading to water shortages.
(x) How is the water soaked by the earth useful for us?
Ans: Water soaked by the earth becomes groundwater, which keeps the soil wet and fertile. We use this water for farming and other purposes through wells and ponds.
(xi) How do the people of Rajasthan collect rainwater? Explain with the help of a diagram.
Ans: In Rajasthan, every house has a system to collect rainwater from their roofs. A pipe connects the roof to an underground tank for storing rainwater for later use.
(xii) Name four sources of water.
Ans: Rainfall, canals, bore wells, wells, rivers, lakes, ponds are some sources of water.
(xiii) List some ways to save water.
Ans: Here are some ways to save water:
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