Environmental Sciences Quiz 386 (20 MCQs)

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1. Which of the following natural resources is a non-renewable resource?
2. Abandoned railroad tracks are overgrown with weeds. Ten years later there are small aspen trees growing in the middle of the tracks. This change is an example of:
3. Which ecosystem has the highest level of salinity?
4. A closed system energy enters the system but matter does not.
5. What 2 things does toxicology depend on?
6. 2nd layer of atmosphere; extends from 10 to 30 miles up; location of ozone layer; absorbs 95% of Ultraviolet radiation; temperature increases with altitude increase.
7. Genetic engineering of plants is a faster way of producing the same results as
8. How is soil affected by insecticide and pesticide?
9. Two or more metals that are combined
10. Which organism is an apex predator?
11. An open system exchanges both matter and energy between a system and the surrounding environment?
12. System that exchanges matter or energy with environment.
13. The chemical Equation CO2 represents which molecule?
14. After studying finches' beaks in the Galapagos island, Darwin proposed that:
15. How do landfills effect the environment?
16. In what ways do organisms get the elements from the biogeochemical cycles into their systems?
17. ..... energies don't run out.
18. In plants and animals, carbon cycles through molecular processes that store and release energy in various molecular forms. In these plant and animal molecular processes, carbon is found in
19. What is a debt for nature swap?
20. Normal rain water has a pH of about