问题更新时间2023/4/3 12:59:00

Already three-quarters of biodiversity in crops has been lost in the last century, according to the United Nations Food and Agriculture Organization.
Eighty percent of maize types that existed in the 1930s are gone, for example. In the United States, 94 percent of peas are no longer grown

答案

据联合国粮农组织统计,四分之三的农作物领域的生物多样性在上个世纪已经消失。例说,存在于二十世纪三十年代的各种玉米种,现在80%已经灭绝了。在美国,94%的豌豆已不复存在。

Already three-quarters of biodiversity in crops has been lost in the last century, according to the United Nations Food and Agriculture Organization.Eighty percent of maize types that existed in the 1930s are gone, for example. In the United States, 94 percent of peas are no longer grown