Across
- 2. The sum of all living matter on Earth
- 4. resorce resources that exsist in the environment without human intervention
- 7. water that collects in cracks and pores in underground soil and rock layers
- 9. process Any natural process that happens to earths surface such as weathering, erosion, or plate tectonics
Down
- 1. not replacable by natural means within a short period of time
- 3. The layer of gas surrounding a planet that it is held in place by gravety
- 5. resorce something that is needed by organisms and is not infinet in its abundance in the environment if its exhausted then the organisms that need it cannot survive
- 6. Resource A source or supply of energy that can be used to generate electric power to meet peoples needs
- 8. replaceable by natural means in a short period of time