Across
- 4. the environment becomes enriched with nutrients, increasing the amount of plant and algae growth to estuaries and coastal waters
- 7. a process in which the outputs of a system are circled back and used as inputs
- 8. A large molecule with a diameter of anywhere between 100 to 10,000 angstroms
- 11. organisms, such as plants and phytoplankton, that can produce their own food through photosynthesis
- 12. any substance that plants or animals need in order to live and grow
Down
- 1. features on the Earth's surface that make up the terrain, such as mountains
- 2. Pieces of the earths crust and uppermost mantle
- 3. an organism that consumes/purchase the goods or other organisms
- 5. When a water-bearing rock readily transmits water to wells and springs
- 6. a class of organic chemicals made up of only the elements carbon and hydrogen
- 9. a particle that consists of a nucleus of protons and neutrons surrounded by an electromagnetically-bound cloud of electrons
- 10. the geological process in which earthen materials are worn away and transported by natural forces such as wind or water