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How many reservoirs are there in the oxygen cycle?(a) 3(b) 2(c) 5(d) 4I have been asked this question during a job interview.I'd like to ask this question from Various Cycles of Environment topic in chapter Other Major Topics in Civil Engineering of Basic Civil Engineering

Answer»

Correct choice is (a) 3

Explanation: The three main RESERVOIRS are the atmosphere (air), BIOSPHERE (the global SUM of all ecosystems) and Earth’s CRUST.



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