Unit 4 Wrap Up

3. all gasses held to earth by its gravity
4. the technical or scientific term for the rotting process
7. the most common molecule used for growth and energy (its a sugar)
8. carbon can be naturally transferred from the geosphere to the atmosphere through these
11. A life form that extracts energy from rotting remains
13. an element used to build chloroplasts and DNA, most of it is inert
14. all water on earth, regardless of condition or location
15. an element that allows for complex molecules and proteins to form
17. a natural water purification process that depends upon the sun
18. water vapor goes through this process at higher altitudes and cold temperatures, forms clouds
20. the chemical reaction that stores energy by building glucose
22. when water vapor is forced out out of the atmosphere and returns to Earth's surface

1. all living things on earth, regardless of size
2. when marine animals die, their bones and shells sink to the bottom and become part of this
5. the organelle in plant cells only that runs the photosynthesis reaction
6. the organelle in plant and animal cells that runs the respiration reaction
9. the chemical reaction that extracts energy from glucose
10. all rock, soil, minerals, and fossil fuels on or in Earth
12. openings in the surface of leaves that allow plants to exchange gases with their atmosphere
16. the blood protein that carries oxygen, can be damaged by too many nitrates in water
19. a greenhouse gas, its chemical formula is CH4
21. marine animals can pull carbon and calcium out of ocean water to create these