Across
- 3. contribute to the health of important wetlands.
- 4. can cause serious respiratory problems and air pollution.
- 6. is one of the flood's causes.
- 7. continuous period of dry weather.
Down
- 1. provides nutrients to the soil.
- 2. can destroy everything and cause respiratory illness.
- 5. 90% of all wildfires are caused by them.
- 7. can be created by severe droughts.