Across
- 2. Trash.
- 3. Ilegal hunting.
- 4. What happened to the dinosaurs when the meteorite hit the earth?
- 6. Dangerous gases.
- 9. It's located in the stratosphere.
- 11. When a boat accidentally spills petroleum over the ocean.
- 12. Something that doesn't harm or pollute the environment.
Down
- 1. How is it called the measure of the gases that are emitted by big industries?
- 5. Reduction of an object or living thing.
- 7. process in which earth materials are worn away.
- 8. Northern India's groundwater loss can be seen from space, how is it called when the ecosystem has lost plenty of water?
- 10. Weather.
- 13. Greta Thunberg.