Ecology Review

2. when liquid water changes into water vapor
5. when some types of bacteria in the soil change nitrogen gas into a form of nitrogen plants can use
6. producers convert light energy into the chemical energy in sugar molecules
9. an area's average weather conditions over time
11. how high above sea level you are
12. a model that shows all the possible feeding relationships among the organisms in a community
14. nonliving, physical features of the environment
15. the air that surrounds earth
16. how far away from the equator you are

1. the process of changing from a gas to a liquid
3. how carbon molecules move between the living and nonliving world
4. the production of energy rich nutrient molecules from chemicals
7. a mixture of mineral and rock particles, the remains of dead organisms, water and air
8. water evaporating from the surfaces of leaves
10. shows the amoung of energy available at each feeding level in an ecosystem
13. features of the environment that are alive or were once alive