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25-1학기 Livestock and the Environment 문제 Flashcards | StudBud
25-1학기 Livestock and the Environment 문제
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15. How much methane does a single cow emit per year?
A
(A) 60 kg
B
(B) 90 kg
C
(D) 30 kg
D
(C) Up to 120 kg
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