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General Facts About Water Video Lecture | Crash Course for Class 6

FAQs on General Facts About Water Video Lecture - Crash Course for Class 6

1. What is the importance of water for living organisms?

Ans. Water is essential for all living organisms as it plays a crucial role in various biological processes. It helps in digestion, nutrient absorption, and circulation. Water also regulates body temperature and is involved in chemical reactions within cells. Without water, life cannot be sustained.

2. How much of the Earth's surface is covered by water?

Ans. About 71% of the Earth's surface is covered by water. This includes oceans, rivers, lakes, and ice caps. The majority of this water, approximately 97%, is saltwater found in the oceans, while only about 3% is freshwater, which is vital for drinking, agriculture, and sanitation.

3. What are the different states of water?

Ans. Water exists in three main states: solid (ice), liquid (water), and gas (water vapor). These states can change from one to another through processes such as melting, freezing, evaporation, and condensation, depending on temperature and pressure conditions.

4. Why is freshwater important and how can we conserve it?

Ans. Freshwater is crucial for drinking, agriculture, and sanitation. To conserve it, we can practice simple habits like fixing leaks, using water-efficient appliances, collecting rainwater, and avoiding unnecessary water use in daily activities like brushing teeth or watering lawns.

5. What are the main sources of freshwater?

Ans. The main sources of freshwater include rivers, lakes, groundwater, and glaciers. Rainfall also contributes to freshwater availability. Proper management of these sources is essential to ensure that there is enough freshwater for all living beings and to support ecosystems.

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Oct 02, 2025 Last updated

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