Across
- 3. complex community made up of living organisms that interact with each other and with their environment, made up of biotic and abiotic components
- 5. process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere
- 9. what happens to all species after a long time
- 10. nonliving components of an environment
- 15. a natural event that causes much damage on plant and animal life
- 17. the transformation of fertile land into relatively dry desert
- 18. measure of the amount of salt present in the soil
- 19. variety of living organisms found in an environment
- 20. removal of trees and other plant life form
- 21. plant, animal or other organism that is not native to an area, and whose introduction has negative effects on its new environment
Down
- 1. a particular philosophy of life or conception of the world.
- 2. process that removes soil, rocks, sand and transports it somewhere else
- 4. key concept in geography: the ongoing capacity of Earth to maintain all life
- 6. very small pieces of plastic that pollute the environment
- 7. series of processes by which carbon compounds are interconverted in the environment
- 8. human-caused rise of the average temperature of the Earth's climate system
- 11. movement of tectonic plates
- 12. condensation, precipitation, runoff, evaporation
- 13. process in which sediments, soil and rocks are added to a landform or land mass
- 14. a large naturally occurring community of flora and fauna occupying a major habitat
- 16. any substance that is released into the environment that causes damage
- 17. barrier that stops or restricts the flow of water or underground streams