Page 106 - EM BIOLOGY NOTES 10TH CLASS PSR DIGITAL BOOKS

10. NATURAL RESOURCES

CHOOSE THE CORRECT ANSWERS

1. Which irrigation techniques are used in areas with water scarcity. [ ] Scan Q.R. for
a. Drip irrigation b. Bore well Online exam
c. Sprinkler irrigation d. (a) & (c)
2. Give an example for micro-irrigation. [ ]
a. Under ground water b. Furrow irrigation
c. Drip irrigation d. Basin irrigation
3. What is percentage of fresh water on our earth. [ ]
a. 2-2.5% b. 2.5-2.75% c. 2.75%-3% d. 1-1.75%
4. Sriram project is constructed on which river. [ ]
a. Krishna b. Brahmaputra c. Godavari d. Kaveri
5. How much of the cultivable land around the world is irrigated by drip
irrigation. [ ]
a. 5% b. 10% c. 4% d. 2%
6. Drip irrigation can reduce water consumption by. [ ]
a. 70% b. 50% c. 40% d. 20%
7. What is the major source of irrigation in A.P and Telangana? [ ]
a. Rain water b. Underground waterc.Rivers d. Lakes
8. When we develop using the resources and ensuring their availability for
future it is called. [ ]
a. Future planning b. Social development
c. Economic development d. Sustainable development
9. Forests are the lungs of. [ ]
a. Soil b. Earth c. Humans d. Living things
10. Instead of cutting trees to prepare paper we can use a type of grass known as.
[ ]
a. China grass b. Bamboo c. Straw d. None
11. Variety of living things that populate the earth is known as. [ ]
a. World b. Flora c. Fauna d. Bio diversity
12. Which of the following practice is suitable for farmers with less water re
sources. [ ]
a. Growing paddy b.Growing maize
c.Using drip irrigation d. Both (b) & (c)
13. Using resources with care is called. [ ]
a. Resource caring b. Resource conservation
c. Resource management d. Both (b) & (c)
14. Choose the right option matching. [ ]
i) Renewable [ ] a. Saves water
ii) Drip irrigation [ ] b. Bunds
iii) Percolation tank [ ] c. Soil
iv) Gliricidia [ ] d. Recharge underground water
a. i-b, ii-c, iii-a, iv-d b. i-c, ii-a, iii-d, iv-b
c. i-c, ii-a, iii-b, iv-d d. i-a, ii-c, iii-b, iv-d

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