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Quick Revision: Water Video Lecture - Class 7
FAQs on Quick Revision: Water Video Lecture - Class 7
| 1. What are the essential properties of water? |  |
Ans. Water has unique properties such as high surface tension, high specific heat capacity, universal solvent capabilities, and the ability to expand upon freezing.
| 2. How does water play a crucial role in biological systems? | |
Ans. Water is essential for various biological processes such as maintaining cell structure, regulating body temperature, transporting nutrients, and facilitating chemical reactions in organisms.
| 3. Can water exist in different states? | |
Ans. Yes, water can exist in three states: solid (ice), liquid (water), and gas (water vapor), depending on the temperature and pressure conditions.
| 4. What is the significance of the water cycle in nature? | |
Ans. The water cycle is vital for the continuous circulation of water on Earth, involving processes like evaporation, condensation, precipitation, and runoff, ensuring the availability of water for all living organisms.
| 5. How does water quality impact human health and the environment? | |
Ans. Poor water quality can lead to health issues like waterborne diseases, environmental pollution, and ecosystem degradation, emphasizing the importance of monitoring and maintaining clean water sources.
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