A-A+
According to the passage why is plankton cons
问题详情
According to the passage, why is plankton considered to be more valuable than land grasses？
A．It"s easier to cultivate.
B．It produces more carbohydrates.
C．It does not require soil to grow.
D．It is more delicious.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：细节题。参见第一段最后两句：In the potential food value．．．the sea's plankton generates more than twice as much．(然而，浮游生物的潜在食用价值远胜过陆地上的草。根据一位科学家的估计，全世界陆地草每年产出490亿吨宝贵的碳水化合物，而海洋浮游生物的碳水化合物产出量则是其两倍。)
