Environmental Science #2

2. Plants use the sun's energy to convert water and carbon dioxide into sugars
7. A mixture that forms when one substance dissolves another.
9. Proteins that speed up chemical reactions
10. a consumer that eats both plants and animals
13. organisms that get their energy by breaking down the remains of dead organisms
15. substances that release hydrogen ions when dissolved in water; ph 1-6
17. Many populations of species that live in the same area at the same time and interact with one another
19. An organism that breaks down wastes and dead organisms
20. Compounds that reduce the concentration of hydrogen ions in a solution; pH 7-14

1. A liquid substance capable of dissolving other substances
3. Attraction between a slightly positive hydrogen atom and a slightly negative atom.
4. The use of Earth's renewable and nonrenewable natural resources in ways that do not constrain resource use in the future.
5. a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
6. A diagram that shows the amount of energy that moves from one feeding level to another in a food web
8. A very large organic molecule composed of many smaller molecules
11. Each step in a food chain or food web
12. just shows one organism eats one more, which eats another, which eats another, and so on
14. Made up of a community of organisms and how they interact with the abiotic environment
16. The cycle through which water in the hydrosphere moves; includes such processes as evaporation, precipitation, and surface and groundwater runoff
18. a consumer that eats plants