The environmental problems bothering refugees in their own homeland are （).A、tsunamiB、

Most environmental problems are caused by people.（)

Most of the environmental problems are man－made.（)

环境问题是否靠个人的努力无法解决？题目要求：Are the environmental problems too big for indiv

The company takes environmental issues into ac

The company takes environmental issues into ac

One of the effective ways to lessen environmental pollution is the reservation and protect