Across
- 3. A form of oxygen above the earth that protects from the sun’s ultraviolet light.
- 9. The radiation leak has had a disastrous effect on the...
- 10. I only use ... detergents.
- 11. I just watched a documentary of Amazonian ...
Down
- 1. Scientists say that coal is the ... of the future.
- 2. I’ve been doing a lot of baking during this...
- 4. These factories are releasing toxic gases into the…
- 5. Senior citizens are the priority for getting COVID-19 ...
- 6. Scientists travelled over the ... to find new mammoths’ fossils.
- 7. Annual … has decreased in most parts of Mexico.
- 8. In some parts of the world malaria is still a...