沙漠每年侵蚀了多少公顷土地五分钟必须解答
来源:学生作业学帮网 编辑:学帮网 时间:2024/06/17 22:58:52
沙漠每年侵蚀了多少公顷土地
五分钟必须解答
每年600万公顷,也就是每分钟10公顷的速度(全球)
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