問題詳情
15. The main contributing factor to the release of CFC’s is
(A) decomposition in land fills.
(B) acid rain.
(C) emission from feedlots.
(D) leaking refrigerators and air conditioners.
(E) burning of tropical forests.
(A) decomposition in land fills.
(B) acid rain.
(C) emission from feedlots.
(D) leaking refrigerators and air conditioners.
(E) burning of tropical forests.
參考答案
無參考答案
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