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Importance of Water Video Lecture | Science Class 7 (Old NCERT)
FAQs on Importance of Water Video Lecture - Science Class 7 (Old NCERT)
| 1. What is the importance of water? |  |
Ans. Water is essential for various reasons. It helps in maintaining body temperature, aids in digestion, transports nutrients and oxygen to cells, lubricates joints, and removes waste products from the body.
| 2. How much water should a person drink in a day? | |
Ans. The amount of water a person should drink in a day varies depending on factors like age, gender, climate, and physical activity level. However, a general guideline is to drink at least 8 glasses or around 2 liters of water per day.
| 3. What are the consequences of dehydration? | |
Ans. Dehydration occurs when the body loses more water than it takes in. The consequences of dehydration can range from mild to severe and include symptoms like fatigue, dizziness, dry mouth, decreased urine output, and in severe cases, it can lead to organ failure and even death if left untreated.
| 4. How does water contribute to the environment? | |
Ans. Water plays a crucial role in the environment. It helps in maintaining ecosystems, supports plant and animal life, regulates climate, and provides habitats for various organisms. Water also helps in the natural purification of the environment by acting as a solvent and transporting pollutants for natural filtration processes.
| 5. Can water scarcity be a global issue? | |
Ans. Yes, water scarcity is a global issue that affects many regions around the world. Due to factors like population growth, climate change, pollution, and inefficient water management, many areas face water scarcity, leading to limited access to clean and safe water for drinking, sanitation, and agriculture. This can have severe social, economic, and environmental consequences.
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Video Description: Importance of Water for Class 7 2025 is part of Science Class 7 (Old NCERT) preparation.
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