Water Resources Important Questions and Answers

Water Resources Important Questions and Answers

Let us tell the students studying in class 10 that you can get the question answers of all the chapters of class 10th subjects from our website. By using these questions and answers, you can easily prepare for all the subjects. Therefore, today in this post, the question answers of Class 10th Geography Chapter 3 Water Resources are given. Read these question answers carefully, it will be beneficial for you. If you like the information given in these questions, then definitely share it with your friends.

Question 1. What is the hydrosphere?
Answer: The entire water component of Earth is called the hydrosphere, which includes liquid water, water vapor, ice, and snow.

Question 2. What percentage of Earth’s surface is covered by water?
Answer: 70.8 percent of Earth’s surface is covered by water.

Question 3. How much of Earth’s surface is covered by water?
Answer: Three-quarters of Earth’s surface is covered by water.

Question 4. What percentage of water is in the form of saline water?
Answer: 97.39 percent of water is saline and distributed in the seas.

Question 5. What is the main source of freshwater on Earth?
Answer: Rivers and underground water sources.

Question 6. What percentage of the world’s total water volume is found in oceans?
Answer: 96.5 percent.

Question 7. What is the largest source of water on Earth?
Answer: Oceans.

Question 8. In which state does the Brahmaputra River flow?
Answer: Arunachal Pradesh.

Question 9. What percentage of the world’s rainfall does India receive?
Answer: 4 percent.

Question 10. What is India’s rank in per capita annual water availability in the world?
Answer: 133rd.

Question 11. What is the largest source of freshwater on Earth?
Answer: Glaciers.

Question 12. What is the largest source of saline water on Earth?
Answer: Oceans.

Question 13. Which state in India is most affected by water scarcity?
Answer: Rajasthan.

Question 14. Name one cause of water scarcity.
Answer: The main cause of water scarcity is the unequal distribution of water.

Question 15. What percentage of total electricity production in India is obtained from hydropower?
Answer: 22 percent.

Question 16. What is a multipurpose river project?
Answer: A multipurpose river project is one where a dam is built on a river to collect water in one place to fulfill multiple objectives simultaneously.

Question 17. On which river is the Bhakra Dam situated?
Answer: Sutlej River.

Question 18. On which river is the Sardar Sarovar Project located?
Answer: Narmada River.

Question 19. What did Jawaharlal Nehru proudly call the dams?
Answer: Jawaharlal Nehru proudly called the dams “Temples of Modern India”.

Question 20. In which two states of India is the method of rainwater harvesting common?
Answer: Rajasthan and Meghalaya.

Question 21. Where in the world does the highest rainfall occur?
Answer: Near Cherrapunji in Meghalaya, at a place called Mawsynram.

Question 22. Which dam is on the Kaveri River?
Answer: Mettur Dam.

Question 23. What is a dam?
Answer: A dam is a barrier built to stop, direct, or reduce the flow of water.

Question 24. Give two examples of underground water sources.
Answer: Wells and tube wells.

Question 25. What is groundwater?
Answer: Water found beneath the earth’s surface is called groundwater.

Question 26. Which two states are part of the joint Tungabhadra Project?
Answer: Andhra Pradesh and Karnataka.

Question 27. In which state of India is the method of ‘roof rainwater harvesting’ prevalent?
Answer: Rajasthan.

Question 28. What type of resource is tidal energy?
Answer: Renewable.

Question 29. Write two objectives of rainwater harvesting.
Answer:
(i) To control uncontrolled surface water flow.
(ii) To meet the increasing demand for water.

Question 30. What is the traditional method of water harvesting in Rajasthan?
Answer: In the rural areas of the sandy regions of Rajasthan, rainwater is collected using an important traditional method called ‘Kundi’ or ‘Tank’, also known as ‘Kund’.

Question 31. Describe the distribution of water on Earth.
Answer: Three-quarters of the Earth’s surface is covered by water, which is why Earth is called a water planet. 96.5 percent of the total volume of water in the world is found in oceans, and only 2.5 percent is freshwater. Freshwater on Earth is found in the form of glaciers, rivers, lakes, and underground water sources. About 70 percent of the world’s freshwater is found in ice sheets and glaciers in Antarctica, Greenland, and mountainous regions, while slightly less than 30 percent is found as groundwater in aquifers.

Question 32. Describe India’s inexhaustible groundwater resources.
Answer: In our country, groundwater resources are inexhaustible. However, the government must consider various measures to conserve these resources. The main source of groundwater is the seepage of rainwater into the ground. The government has started implementing many methods for this purpose. There are several low-cost techniques for groundwater recharge, such as creating seepage pits, digging deep trenches around fields, refilling pits, and building check dams on small streams. Roof water can easily be collected in tanks or underground.

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