Many environmental problems have become global in nature. （ ） A:对 B:错 答案: 对Sustainable development is development to mee 点我阅读全文
Ecosystem is a region in which the organisms and the physical environment form a (an) ____ unit. （ ） A:interacting B:phy 点我阅读全文
Environment is everything that affects an organism during its lifetime. （ ） A:错 B:对 答案: 对Environmental science is an int 点我阅读全文
Renewable resources include___. ( ) A:fossil fuels B:Soil C:water D:vegetation, 答案: Soil ,water ,vegetation,Risk managem 点我阅读全文
Negligible risk is the zero risk. （ ） A:错 B:对 答案: 错Life cycle analysis is the process of assessing the environmental eff 点我阅读全文
Air pollution, water pollution, plant and animal extinctions, depletion of a resource are all example of the environment 点我阅读全文