Wednesday, 10 June 2015

Which gas is used for artificial ripening of fruits ? (1) Methane (2) Acetylene (3) Butane (4) Propane (5) None of these

Which gas is used for artificial ripening of fruits ?
(1) Methane
(2) Acetylene
(3) Butane
(4) Propane
(5) None of these

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