Across
- 2. a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide
- 4. an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production
- 5. rapid chemical combination of a substance with oxygen, involving the production of heat and light.
- 6. all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds
- 8. the process by which organisms combine oxygen with foodstuff molecules, diverting
- 10. a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms
- 11. a forest, ocean, or other natural environment viewed in terms of its ability to absorb carbon dioxide from the atmosphere.
- 12. a plastid that contains chlorophyll and in which photosynthesis takes place
- 14. relating to or resulting from living things, especially in their ecological relations
- 16. the envelope of gases surrounding the earth or another planet
- 17. Power made from resources that can be use to provide heat light and nutrients
- 18. any thing that produces carbon and releases it into the air
- 20. A group of words use in a specific language
- 22. physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy
- 23. any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere
Down
- 1. an individual animal, plant, or single-celled life form
- 3. a green pigment, present in all green plants thats responsible for the absorption of light to provide energy
- 7. a method of cellular respiration that does not require oxygen to generate energy.
- 9. A process when a plant synthesizes food from carbon dioxide and water
- 12. the chemical element of atomic number 6, a nonmetal which has two main forms (diamond and graphite) and which also occurs in impure form in charcoal, soot, and coal
- 13. physical rather than biological; not derived from living organisms
- 15. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
- 19. the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms
- 21. the rigid outer part of the earth, consisting of the crust and upper mantle