Across
- 2. getting too many fish from the sea or ocean
- 9. (10,6) CO2 + other gasses get into atmosphere
- 11. too many people living on the Earth
- 13. (7,10,6) the system of getting rid of pepleĀ“s waste
- 14. branch of biology - relationships between living organisms
- 15. dirt, when something is not clean
Down
- 1. (13,10) trying to preserve as much from the Earth as possible
- 3. (6,7) the Earth is getting more and more hot
- 4. cutting down all trees in forest
- 5. (5,6) where you get the H2O
- 6. (5,4) place with less ozone in the atmosphere
- 7. opposite to waste; for example energy, water, etc.
- 8. (5,4) the agreement of countries to use as little energy as possible
- 10. taking old thing and creating something new out of it
- 12. using waste material to create new material