Water Video Lecture | Social Studies (SST) Class 7 (Old NCERT)
FAQs on Water Video Lecture - Social Studies (SST) Class 7 (Old NCERT)
| 1. What are the essential properties of water? |  |
Ans. Water has several essential properties, including its ability to dissolve many substances (making it a universal solvent), its high specific heat capacity (which helps regulate temperature), its high surface tension, and its unique density behavior (being less dense as ice than as liquid). These properties are crucial for supporting life and various ecological processes.
| 2. Why is water considered a vital resource for life? | |
Ans. Water is vital for life because it is necessary for all biological processes. It acts as a solvent for biochemical reactions, helps in temperature regulation, transports nutrients and waste products in organisms, and is essential for hydration. Without water, life as we know it would not be possible.
| 3. How does water pollution affect ecosystems and human health? | |
Ans. Water pollution can severely impact ecosystems by harming aquatic life, disrupting food chains, and degrading habitats. For human health, contaminated water can lead to diseases such as cholera and dysentery, and can cause long-term health issues due to exposure to toxic substances. Clean water is crucial for both environmental and public health.
| 4. What are the main sources of freshwater on Earth? | |
Ans. The main sources of freshwater on Earth include rivers, lakes, glaciers, and groundwater. Approximately 68% of the world's freshwater is stored in glaciers and ice caps, while rivers and lakes provide accessible freshwater for drinking, irrigation, and industrial use.
| 5. How can individuals conserve water in their daily lives? | |
Ans. Individuals can conserve water by adopting simple practices such as fixing leaks, using water-efficient appliances, reducing shower times, collecting rainwater for gardening, and using mulch to retain soil moisture. These actions not only help save water but also promote sustainable living.
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Video Description: Water for Class 7 2025 is part of Social Studies (SST) Class 7 (Old NCERT) preparation.
The notes and questions for Water have been prepared according to the Class 7 exam syllabus.
Information about Water covers all important topics for Class 7 2025 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Water.
Introduction of Water in English is available as part of our Social Studies (SST) Class 7 (Old NCERT) for Class 7 & Water in
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Video Lecture & Questions for Water Video Lecture | Social Studies (SST) Class 7 (Old NCERT) - Class 7 full syllabus preparation | Free video for Class 7 exam to prepare for Social Studies (SST) Class 7 (Old NCERT).
Information about Water
Here you can find the meaning of Water defined & explained in the simplest way possible.
Besides explaining types of Water theory, EduRev gives you an ample number of questions to practice Water tests,
examples and also practice Class 7 tests.
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