Water Resources and Scarcity Quiz
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Questions and Answers

Did you know that three fourths of the Earth's Surface is covered in water?

True (A)

What is the main source of freshwater?

  • Surface runoff
  • Ground water
  • Both surface runoff and ground water (correct)
  • None of the above

What are some of the major causes of water scarcity?

Over-exploitation, excessive use, and unequal access to water are some of the main reasons for water scarcity.

What does the term 'multi-purpose projects' refer to regarding water resources?

<p>Projects designed for multiple purposes such as irrigation, flood control, and hydroelectric power generation (A)</p> Signup and view all the answers

What are the adverse consequences of building dams?

<p>Sedimentation and habitat destruction (A)</p> Signup and view all the answers

Which of the following practices is NOT a part of the water harvesting systems in India?

<p>Treating wastewater for industrial use (B)</p> Signup and view all the answers

Explain how rainwater harvesting is practiced in the Thar Desert?

<p>In the Thar Desert, rainwater harvesting is a traditional practice using various techniques like Khadins, Johads, and tankas to collect and store rainwater for agricultural and domestic use.</p> Signup and view all the answers

The bamboo drip irrigation system in Meghalaya is a modern innovation.

<p>False (B)</p> Signup and view all the answers

Why is the bamboo drip irrigation system considered sustainable?

<p>The bamboo drip irrigation system conserves water by minimizing water loss due to evaporation and ensuring water reaches the roots efficiently, promoting sustainable practices.</p> Signup and view all the answers

What are some of the major challenges faced by the river systems in India due to the construction of dams?

<p>Some of the major challenges include sedimentation in reservoirs, habitat fragmentation, and disruption of natural river flow, leading to ecological consequences and affecting biodiversity.</p> Signup and view all the answers

What measures can be taken to mitigate the ecological impacts of dams?

<p>Measures can include regulating water release from dams, ensuring downstream flow, and restoring natural habitats to minimize negative impacts on ecosystems. Prioritizing sustainable resource management practices is crucial.</p> Signup and view all the answers

What is the main objective of the Pradhan Mantri Krishi Sinchaee Yojana?

<p>To enhance water access and improve on-farm water use efficiency for agricultural purposes. (C)</p> Signup and view all the answers

Flashcards

Hydrological Cycle

The continuous circulation of water within the Earth's atmosphere, hydrosphere, lithosphere, and biosphere, involving processes like evaporation, condensation, precipitation, infiltration, and runoff.

Water Scarcity

The lack of sufficient water resources to meet the needs of a population.

Over-exploitation of Water Resources

The overuse of water resources, leading to depletion and reduced availability.

Potable Water

Water that is suitable for human consumption, free of harmful contaminants.

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Rainwater Harvesting

The process of collecting and storing rainwater for later use.

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Dam

A large structure built across a river to control its flow and create a reservoir.

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Hydraulic Structures

Structures built to control the flow of rivers, including dams, reservoirs, canals, and embankments.

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Multi-Purpose River Projects

Projects designed to use a river's resources for multiple purposes, such as irrigation, hydroelectric power generation, flood control, and recreation.

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Integrated Water Resources Management

The process of managing water resources in a comprehensive and integrated way, considering all aspects of water use and the needs of different stakeholders.

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Bamboo Drip Irrigation System

A system of using bamboo pipes to transport water from springs and streams to fields for irrigation, often used in Meghalaya.

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Tankas

The practice of storing water in underground tanks, often used in arid regions like Rajasthan to conserve rainwater.

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Rooftop Rainwater Harvesting

A system of collecting rainwater from rooftops and directing it into storage tanks or underground reservoirs.

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Groundwater Recharge

The process of allowing water to infiltrate into the soil to replenish groundwater levels.

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Khadins and Johads

A type of rainwater harvesting system used in Rajasthan, where agricultural fields are converted into rain fed storage structures.

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Guls or Kuls

Diversion channels built in the Western Himalayas to carry water for irrigation purposes.

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Inundation Channels

The process of converting agricultural fields into rain-fed storage structures to retain water and moisten the soil.

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Falling Groundwater Levels

The depletion of groundwater levels due to excessive pumping, leading to reduced water availability and potential land subsidence.

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Water Conservation in Agriculture

The practice of using less water in agricultural processes, for example, by using drought-resistant crops or efficient irrigation techniques.

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Jal Jeevan Mission (JJM)

An initiative by the Government of India to provide safe and adequate drinking water to all rural households, with a target of 55 liters per capita per day.

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Atal Bhujal Yojana (Atal Jal)

A scheme implemented by the Government of India to address water stress in rural areas, focusing on behavioral change and community participation in water management.

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Water Pollution

The contamination of water resources with pollutants from domestic, industrial, and agricultural activities.

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Regulating and Damming of Rivers

The process of changing the natural flow of rivers by regulating and damming them, which can have significant ecological impacts.

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Sedimentation in Reservoirs

The deposition of sediment at the bottom of reservoirs created by dams, leading to various negative consequences, such as changes in the river's flow and habitat.

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Soil Erosion

The loss of fertile topsoil due to erosion, often exacerbated by deforestation and unsustainable agricultural practices.

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Salinisation of Soil

The increased salinity of soils, often caused by excessive irrigation and poor drainage, impacting agricultural productivity.

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Inter-State Water Disputes

Disputes arising between states over the sharing of water resources, often due to competing demands and unequal distribution.

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Sardar Sarovar Project

A large-scale water resource project in Gujarat, involving the construction of a dam on the Narmada River to provide irrigation and drinking water.

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Pradhan Mantri Krishi Sinchaee Yojana

A national program aimed at providing assured irrigation to all agricultural farms in India, promoting water conservation and improved water use efficiency.

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Water-Intensive Crops

The use of water-intensive crops, often leading to increased water consumption and potential ecological consequences.

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Krishna-Godavari Dispute

The Krishna-Godavari dispute is a long-standing inter-state water dispute between Andhra Pradesh, Karnataka, and Maharashtra, involving the sharing of water from the Krishna and Godavari river basins.

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Study Notes

Water Resources

  • Earth's surface is mostly water, but usable freshwater is a small portion
  • Freshwater comes from surface runoff and groundwater, constantly renewed through the hydrological cycle
  • Water is a renewable resource
  • Water scarcity results from over-exploitation, excessive use, and unequal access
  • Large populations and increased demand are factors contributing to water scarcity
  • Unequal access to water is another cause of water scarcity in some regions
  • Excessive use of water for irrigated agriculture is a significant contributor to water scarcity
  • Water scarcity can also be due to polluted water, despite abundant supply

Water Scarcity and Conservation

  • Water shortages are often linked to low rainfall regions or drought-prone areas
  • Water scarcity can exist in areas with substantial available water
  • Water quality, not just quantity, plays a vital role in scarcity problems
  • Water from sources like rivers, springs, lakes, and groundwater sources can become polluted due to industrial waste and chemicals
  • Pollution from domestic and industrial waste poses a threat to freshwater
  • Excessive exploitation and misuse of water resources lead to ecological crises causing adverse effects on human life

Water Conservation and Management

  • Water conservation and management are critical for maintaining water availability
  • Multi-purpose river projects are used to supply water for agriculture, industries, and domestic use
  • Dams are used to impound rivers and rainwater for irrigation and electricity generation
  • Multi-purpose projects aim to integrate different water uses

Rainwater Harvesting

  • Rainwater harvesting is a sustainable alternative water source
  • Traditional methods include rainwater collection in underground tanks (tankas) in Rajasthan
  • Ancient techniques involved creating channels or diversion systems (guls or kuls) for managing water in mountainous regions
  • Rooftop collection systems provide a reliable source of water, especially during the dry season in Rajasthan
  • Rainwater harvesting systems are crucial to conserving and sustaining water supplies
  • Many households, especially in rural areas, have adapted rooftop rainwater-harvesting systems.

Bamboo Drip Irrigation

  • Bamboo irrigation systems, prevalent in Meghalaya, direct water from higher elevations to crops
  • Bamboo pipes deliver water in a controlled manner, minimizing wastage

Water Disputes

  • Inter-state water disputes are often caused by differing water usage needs and rights
  • The allocation of water sources among states can trigger conflicts
  • Disputes can also arise from perceived inequitable distribution or diversions of water sources

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Description

Test your knowledge about water resources, conservation, and the dynamics of water scarcity. This quiz covers the hydrological cycle, resource management, and the impact of human activity on water availability. Explore the crucial balance between water quality and quantity in various regions.

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