Environmental science

4. Coli bacteria normally live in the intestines of healthy people and animals
7. the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.
8. acidophilus a form of bacteria that's found naturally in the body
10. is an agreement within the United Nations Framework Convention on Climate Change
12. are various blends of common predominantly anaerobic microorganisms in a carbohydrate-rich liquid carrier substrate
13. the envelope of gases surrounding the earth or another planet.
15. the presence in or introduction into the air of a substance which has harmful or poisonous effects.
18. a lactic acid-forming bacterial species within the genus Bacillus
20. a semi-solid sourish food prepared from milk fermented by added bacteria

1. a glass building in which plants that need protection from cold weather are grown.
2. a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.
3. a substance that pollutes something, especially water or the atmosphere.
5. an international treaty which extends the 1992 United Nations Framework Convention on Climate Change
6. part of the electromagnetic spectrum where wavelengths are just shorter than those of ordinary, visible violet light but longer than those of x-rays.
9. the contamination of water bodies
11. excessive richness of nutrients in a lake or other body of water, frequently due to run-off from the land, which causes a dense growth of plant life.
14. rainfall made so acidic by atmospheric pollution that it causes environmental harm, chiefly to forests and lakes.
16. a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some which can cause disease.
17. he emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause
19. a unit used to estimate the number of viable bacteria or fungal cells in a sample.