Ecology part 1

4. the layer of gases surrounding Earth
7. the process in which the Sun’s energy is converted into chemical energy
9. visible forms of radiant energy
10. the form of energy transferred during heating and cooling
11. all of Earth’s water in solid, liquid, and gas form
12. an organism that makes it own energy rich food compounds using the Sun’s energy
14. an ecosystem that is maintained through natural processes
15. an organism that obtains its energy from consuming other organisms
16. energy that travels through empty space

1. Earth’s solid outer layer
2. the zone around Earth where life can exist
3. living things, their remains, and features such as nests, associated with their activities
5. the ability to maintain an ecological balance
6. the process by which sugar and oxygen are converted into carbon dioxide and water, to provide energy for the cell
8. all the living organisms and their physical and chemical environment
13. the non-living physical and chemical components of an ecosystem