Apentix/AP Environmental Science/Unit 5: Land and Water Use/Question

AP Environmental Scienceeasymcq1 pt

Why is producing one calorie of beef generally more resource-intensive than one calorie of grain?

A.Cattle convert only a fraction of feed energy into meat

B.Cattle photosynthesize

C.Grain requires more land than cattle

D.Beef contains no nutrients

Explanation

Core Concept

Trophic inefficiency: most feed energy fuels the animal's metabolism, so meat embeds far more land, water, and grain per calorie.

Correct Answer

ACattle convert only a fraction of feed energy into meat

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