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What are the two general principles of e...

What are the two general principles of energy flow?

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a) The flow of energy is unidirectional. b) As the energy moves progressively through the various tropic levels, it is no longer available to the previous level.
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CPC CAMBRIDGE PUBLICATION-CPC MODEL QUESTION PAPER-4-ANSWER THE FOLLOWING QUESTIONS
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  3. What are the two general principles of energy flow?

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  4. How is caustic soda obtained? Mention its uses.

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  7. What is Myopia? Name the lens used to correct Myopia.

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  8. The far point of a myopic person is 150cm in front of eye, calculate t...

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