Across
- 3. To use something again instead of throwing it away.
- 5. The gas that trees give off and humans need to breathe.
- 6. The process where CO2 is removed and permanently stored.
- 8. __________gases contributing to global warming
Down
- 1. ________Fuel is used in vehicles like petrol and diesel.
- 2. What are the core principles of waste management 3R Reduce, Reuse,_____________
- 4. __________Gas responsible for global warming.
- 5. The atmospheric layer that protects us from harmful sun rays.
- 7. Solar, wind, and hydropower are examples of these.
- 9. ____________is the main source of energy for Earth.