Science

2. The introduction of dangerous chemicals, disease, or infectious materials.
5. government payment to encourage or protect a certain economic activity
7. a place to dispose of refuse and other waste material by burying it and covering it over with soil, especially as a method of filling in or extending usable land.
8. water Water above the surface of the land, including lakes, rivers, streams, ponds, floodwater, and runoff.
10. use Various ways humans use the land such as agricultural, industrial, residential, or recreational
11. meeting the needs of the present without compromising the ability of future generations to meet their own needs
12. Any material or substance which is eliminated or discarded as it is no longer useful or required.
14. The removal of trees faster than forests can replace themselves.
15. The condition of producing adverse bodily effects due to poisonous qualities.

1. an area or ridge of land that provides water flowing to rivers, basins, or seas within the area.
3. An increase in the percentage and in the number of people living in urban settlements
4. land
6. water that fills the cracks and spaces in underground soil and rock layers that can be accessed by wells.
9. the science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products.
13. source pollution pollution that comes from a specific site