A sustainable B predictable C affordable D beneficial

A typical B organic C reliant D dependent

We can____the power of the wind to generate electricity. A save B harness C manage D conserve

If I _____ that plastic was bad for the environment, I would have used reusable bags for shopping. A had known B knew C will know D know

If you could charge your car with the sunlight, (20) ______ you? A. will B. can’t C. won’t D. would

A viable B impactful C permanent D usable

A consistent B consuming C depleted D minimal

Unless we _____ a suitable location for wind energy, we won’t be able to build wind turbines. A find B don’t find C found D didn’t find

19 If I were you, I ______ down on my daily use of fossil fuels from now on. A will cut B would cut C would have cut D could have cut

______ items are originally thought to be useful, but they turn out to be an environmental problem. A Dispose B Disposable C Disposing D Disposal

If we (21) ___to eco-friendly options like electric vehicles, bicycles or public transport, our city will have cleaner air and a brighter future. A switch B switched C had switched D would switch

16 Some types of green energy sources are very difficult to be in some nations. A harnessed B impacted C reduced D contributed

A locate B install C value D exist