Class 10 Geography Chapter 3 Important Question Answer of Water Resources NCERT Solution in Hindi. NCERT Class 10 Geography Question Answer and Important Question Answer, Textual Question answer also Available for Various Board Students like HBSE, CBSE, UP board, Mp Board, RBSE and some other State Boards.
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NCERT Solution for Class 10 Geography Chapter 3 Water Resources Important Question Answer.
Water Resources Class 10 Important Question Answer
Q1. What is water scarcity ? Write in brief of its main causes.
Ans – Water Scarcity – many areas have shortage of water. This is called scarcity of water. In Rajasthan, women have to travel long distance to get drinking water after balancing matkas. According to Falken Mark, a Swedish Expert, water scarcity occurs when water availability is less than 1000 m3 per person per day.
Causes –
- Low rainfall causes scarcity of water.
- Water scarcity occurs in drought prone
- Variation in seasonal rainfall.
- Over exploitation of water.
- Excessive use of water.
- Unequal access to water.
- Great demand due to growing population.
Q2. Compare the advantages and disadvantages of multi-purpose river projects.
or
What are the disadvantages of Multi-purpose River Projects?
Ans –
Advantages of Multi-purpose Rive projects –
- Provide Irrigation
- Generate Electricity
- Provide water Supply
- Control Flood
- Help in Fish Breeding
- They Provide help in Industrial Development.
Disadvantages of Multi-purpose Rive projects –
- Affect natural flow of water
- poor sediment flow with water
- poor habitat for aquatic life in river.
- Large scale displacement of local communities
- They submerge the existing vegetation.
- Soil decomposition occur
Q3. Explain how rain water harvesting in semi-arid regions of Rajasthan is carried out ?
Ans – Rain water harvesting is a technique of increasing the recharge of ground water by capturing and storing rainwater. Many low cost techniques are used in semi arid areas like Rajasthan. In Bikaner, Phalodi and Barmer, underground tanks or tankar are used for storing drinking water. These are connected to the sloping roofs of the houses through a pipe. Rainwater is stored in tankas for three to five years. Rainwater or Palar Pani is considered the Purest form of natural water.
Q4. What do you mean by Multi purpose project? Give its three benefits. Most Important
OR
What is multi-purpose projects ? Most Important
Ans – A multipurpose project is that type of project which fulfils a variety of purposes at the same time. for example- irrigation, generation of electricity, flood control, fish breeding, soil conservation with a single project of a Dam.
Q5. Define Underground Water.
Ans – Water that is found inside of Land is called underground water. Water obtained from wells and tubewells is underground water.
Q6. What is rainwater harvesting?
Ans – The Process of saving water of Rainfall for use is called Rainwater Harvesting. Rainwater Harvesting is mainly done in water scarcity areas.
Q7. What is watershed development ?
Ans – The Development in the storing method of water is called watershed development. This is used in rain water harvesting.