Podcast
Questions and Answers
What is the primary reason for constructing dams?
What is the primary reason for constructing dams?
- Aesthetic purposes
- Decorative structures
- Coastal protection
- Flood control (correct)
Water scarcity is caused by excessive use and equal access to water among different social groups.
Water scarcity is caused by excessive use and equal access to water among different social groups.
False (B)
List two uses of dams.
List two uses of dams.
Irrigation and electricity generation.
Three-fourth of the earth's surface is covered with _____, but only a small proportion is freshwater.
Three-fourth of the earth's surface is covered with _____, but only a small proportion is freshwater.
Match the following terms with their definitions:
Match the following terms with their definitions:
Which of the following is NOT a reason for water scarcity?
Which of the following is NOT a reason for water scarcity?
Rainwater harvesting is a method used to enhance water conservation.
Rainwater harvesting is a method used to enhance water conservation.
What are the two main causes of water scarcity mentioned?
What are the two main causes of water scarcity mentioned?
What is a primary consequence of creating dams on rivers?
What is a primary consequence of creating dams on rivers?
Creating large dams has never caused any environmental movements.
Creating large dams has never caused any environmental movements.
Name one method of rainwater harvesting practiced in arid regions.
Name one method of rainwater harvesting practiced in arid regions.
The movement focused on opposing the construction of the Tehri Dam is known as the __________.
The movement focused on opposing the construction of the Tehri Dam is known as the __________.
Match the rainwater harvesting method with its location:
Match the rainwater harvesting method with its location:
What has been a significant impact of dam construction on soil?
What has been a significant impact of dam construction on soil?
Rainwater harvesting can only be used for agricultural purposes.
Rainwater harvesting can only be used for agricultural purposes.
What often motivates local communities to oppose dam constructions?
What often motivates local communities to oppose dam constructions?
Flashcards
Water Scarcity
Water Scarcity
Limited availability of usable freshwater resources, caused by overuse, unequal access, and poor water quality.
Water Conservation
Water Conservation
Protecting and managing water resources to ensure availability for future needs.
Dam
Dam
A barrier across a river that creates a reservoir for water storage.
Multi-purpose River Project
Multi-purpose River Project
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Uses of Dams
Uses of Dams
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Freshwater Availability
Freshwater Availability
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Water as Renewable resource
Water as Renewable resource
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Water over-expolitation
Water over-expolitation
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Dam's effect on river flow
Dam's effect on river flow
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Dam's impact on aquatic life
Dam's impact on aquatic life
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Submerged vegetation
Submerged vegetation
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Environmental movements
Environmental movements
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Displacement due to dams
Displacement due to dams
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Unintended dam consequences
Unintended dam consequences
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Rainwater harvesting
Rainwater harvesting
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Rainwater harvesting methods
Rainwater harvesting methods
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Study Notes
Water Resources
- Water covers three-fourths of Earth's surface, but only a small portion is freshwater usable for humans.
- Water availability varies geographically and temporally.
- Water scarcity arises from over-exploitation, excessive use, and unequal access.
- Water resources are being overused to expand irrigated agriculture in dry seasons.
- Water quality issues also contribute to scarcity even in areas with adequate supply.
Water Conservation and Management
- Crucial for health and safety.
- Critical for food security and livelihoods.
- Vital for protecting natural ecosystems.
Multi-Purpose River Projects
- Ancient civilizations used sophisticated hydraulic structures like dams, reservoirs, and canals for irrigation.
- Modern India continues this tradition, with dams built in major river basins.
Dams
- Dams are barriers that obstruct, direct, or alter water flow, commonly creating reservoirs.
- Dams are used for irrigation, electricity generation, water supply, flood control, recreation, and fish breeding.
Side Effects of Dams
- Alter natural river flow.
- Harm river-dwelling life.
- Make existing land unusable due to submersion.
- Cause environmental degradation.
- Trigger new environmental movements.
- Displace communities.
- Disrupt natural ecosystems.
- Can cause severe erosion.
- Create problems leading to earthquakes, waterborne diseases, and pollution.
Rainwater Harvesting
- Collecting rainwater for future use.
- Used in various ways: storage, direct use, or recharge.
- Diverse methods used:
- Diversion channels ('guls' or 'kuls') in the Western Himalayas for agriculture.
- Rooftop rainwater harvesting in Rajasthan for drinking water.
- Inundation channels in Bengal for irrigation.
- 'Khadins' and 'Johads' in arid and semi-arid regions for storing and using rainwater.
- Tankas (storage systems) in Rajasthan -Tamil Nadu's rainwater harvesting systems are compulsory.
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Description
Explore the critical aspects of water resources, including availability, scarcity, and management strategies. This quiz delves into water conservation, the role of multi-purpose river projects, and the significance of dams in modern agriculture. Test your knowledge on how water resources impact health, ecosystems, and food security.
