Which of the following statement is true about desertification? It has a history as

* Hướng dẫn giải

Đáp án A

It has a history as long as that of civilization.

Thông tin nằm ở đoạn 1: “Since the first great urban-agricultural centers in Mesopotamia nearly 6,000 years ago,  human  activity  has  had  a  destructive  impact  on  soil  quality,  leading  to  gradual  desertification  in virtually every area of the world.”