Water Scarcity Challenges and Solutions in a Changing World

The video discusses the abundance of water on Earth and the paradox of water scarcity. It explores the causes of water shortages, including uneven rainfall, human activities, and pollution. The role of dams and water management projects is examined, along with their environmental impacts. Historical water management practices in India are highlighted, and various types of dams are described. Government initiatives for water conservation and regional water harvesting techniques are also covered.

What is the main reason for water scarcity despite water being a renewable resource?

• Abundance of fresh water

• Excessive rainfall

• Uneven rainfall and human activities

• Lack of water cycle

Which sector is the largest consumer of water?

• Domestic use

• Agriculture

• Industrial use

• Recreational activities

What is the primary goal of the Jal Jeevan mission?

• To reduce water pollution

• To build more dams

• To supply 55 litres of water per person daily in rural households

• To provide safe drinking water to urban areas

What is one of the main purposes of constructing dams?

• To eliminate fish breeding

• To reduce water levels

• To store water for irrigation and electricity generation

• To increase river flow

What environmental issue is caused by large dams?

• Improved fish migration

• Increased sediment flow

• Loss of aquatic habitats

• Enhanced natural river flow

Which ancient Indian region was known for its sophisticated irrigation systems?

• Punjab

• Kalinga

• Gujarat

• Rajasthan

What is a dam primarily used for?

• To eliminate water reservoirs

• To increase water flow

• To stop or control water flow

• To reduce water storage

What is the aim of the Pradhan Mantri Krishi Sinchai Yojana?

• To decrease water availability

• To reduce agricultural water use

• To build more urban water systems

• To ensure water reaches every farm

Which method is considered better than multipurpose projects for water management?

• Water harvesting

• Building more dams

• Increasing industrial water use

• Expanding urban water systems

What is a key feature of rooftop rainwater harvesting in Gendathur, Karnataka?

• It collects 10,000 litres annually

• It has 50% efficiency

• It collects about 50,000 litres annually with 80% efficiency

• It is not used in rural areas