Science

8. a complex mixture of small solid particles and liquid droplets in the air
9. materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain.
10. the process of claiming something back or of reasserting a right.
12. global warming is the long-term heating of Earth's surface observed since the pre-industrial period
13. prevention of wasteful use of a resource.
14. the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere

1. the process of replanting an area with trees.
2. whitening of coral that results from the loss of a coral’s symbiotic algae
3. the process of making an area more urban.
4. the action of clearing a wide area of trees.
5. a body of permeable rock which can contain or transmit groundwater
6. gases in the earth's atmosphere that trap heat.
7. the weather conditions prevailing in an area in general or over a long period.
8. the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.
11. a long-term change in the average weather patterns that have come to define Earth's local