22 videos|80 docs|16 tests
|
1. What are the different sources of water? |
2. How is water treated before it is safe for consumption? |
3. Why is it important to conserve water? |
4. How does water play a role in agriculture? |
5. What are the effects of water pollution on human health? |
22 videos|80 docs|16 tests
|
|
Explore Courses for Class 6 exam
|