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Question
During a year, the gross photosynthesis of grass growing on a 2000 m2 parcel of land was 10 000 kg of carbon (kg C) per year. A farmer harvested this grass to feed it to her animals. The grass contained 1000 kg of carbon. The animals that ate the grass gained 100 kg of carbon in their meat. What was the secondary productivity of this piece of land?A) 5 kgC/m2/yr
B) 0.5 kgC/m2/yr
C) 0.05 kgC/m2/yr
D) 5 kgC/yr
E) 0.5 kgC/yr
Answer
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