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_____16. Which of the following is not a source of nitrogen that is available in plants?
A. Decaying plant and matter
B. Nitrogen oxides released into the atmosphere by burning fossil fuels and o
organic matter.
C. Synthetic nitrogen containing fertilizers
D. Animal waste product.
_____17. It is consists of all the organisms that feed at a particular level in a food chain.
A. Niche B. Food pyramid C. Trophic level D. Habitat
_____18. Secondary consumes belong to ______.
A. Fourth trophic level C. Third trophic level
B. Second trophic level D. First trophic level
_____19. Which is not an abiotic component of the environment?
A. Gases B. Light C. Bacteria D. Soil
_____20. After the 1992 Rio Summit, it became a buzzword for measuring the health of
the planet. And for referring to number of species found there.
A. Biodiversity C. Ecological Footprint
B. Conservation D. Sustainable development



Sagot :

Answer:

16. d

17.b or d

18.b

19. a

20.b

Explanation:

I think i have wrong just check my answer hope other answer may help you

Answer:

16.)D

17.)C

18.)D

19.)C

20.)A

Explanation:

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