18. The main driving source for ecological system is-
(A) Tidal enegy
(B) Solar enegy
(C) Wind energy
(D) None of the above
19. Which of the following is not consideres to be a natura
Answers
Answered by
196
Answer:
(B) Solar Energy is the main driving source for ecological system .
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Answered by
8
Answer:
(B) Solar energy is the correct option
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