Across
- 3. Bio-Degrable waste is also called ________ wastes.
- 5. Which type of water is healthy and fit for health?
- 7. Which gas is 78 percent in the air?
- 9. The air that covers the earth like a blanket is called _____________.
Down
- 1. Green house is dangerous for plants.(True/False)
- 2. _________ is formed when we decompose food waste.
- 4. We should __________the food waste.
- 6. Water pollution affects the life of aquatic animals.(True/False).
- 8. We should recycle plastic.(Yes/No)