Ch. 1 & 3 crossword

3. two sub-layers of the earths crust that move
4. the layer of the earth's atmosphere above the troposphere
8. the impact of a person or community on the environment
11. branch of biology that deals with the relations of organisms to one another and there surroundings
12. substance or thing that has harmful or poisonous effects.
13. the upper layer of the earth's mantle
14. is the endurance of systems and processes
15. the variety of life in the world
18. water that collects as droplets on a cold surface when humid air is in contact with it.
19. the envelope of gases surrounding the earth

1. spherical concentric regions of matter that make up the earth and its atmosphere
2. materials or substances such as minerals, forests, water
5. science of the interactions between the physical, chemical, and biological components of the environment
6. The changing of a liquid into a gas
7. the cycle of processes by which water circulates between the earth's oceans
9. the rigid outer part of the earth
10. the science or practice of farming, including cultivation of the soil for the growing of crops
16. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise
17. the regions of the surface, atmosphere, and hydrosphere of the earth
20. that lies beneath the crust and above the central core