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ohaa [14]
3 years ago
7

Which of the following is a force acting between objects that do not touch?

Biology
2 answers:
Tema [17]3 years ago
8 0
B. Frictional force is correct
kramer3 years ago
7 0
The answer to your question is C. Electrical force
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The net annual primary productivity of a particular wetland ecosystem is found to be 8,000 kcal/m2 per year. If respiration by t
Yakvenalex [24]

Answer:

D.20,000

Explanation:

The Gross Annual Primary Productivity for the wetland ecosystem is the amount of carbon taken up by the aquatic producers through photosynthesis.  

Given that: Net Annual Primary Producer is 8,000 kcal/m2 per year, and respiration by the aquatic producers is 12,000 kcal/m2 per year, using the formula NPP = GPP – Respiration, we can determine the Gross Annual Primary Productivity of the wetland ecosystem.

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3 0
3 years ago
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