問題詳情
80. How does damming or altering the path of a river destroy wetlands?
(A) Fish can no longer
migrate up and down the river；
(B) Wetlands can no longer obtain nutrients from annual
floods；
(C) Wetlands can no longer obtain oxygen from the flowing water of the river；
(D)
Birds can no longer get to the wetlands.
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增