Question

Which of the following statements are correct?
P. Only net productivity is available to the consumd
Q. Almost 90% of the matter present at one trop
level.
R. Matter can be converted into energy; however, e
S. Secondary productivity increases with each tropli
a. P and R
b. P and Q
c. Q and S
d. P and S​

Answer 1

Answer:

option c

Explanation:

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Answer 2

Answer:

option C is Correct Answer