6B Unit 3

fumes

air

water

sewage

fumes

methane

water

People may get lung cancer.

People may be sick.

People may have respiratory diseases.

People cannot get clean food.

People should stop driving at all. There should be no vehicles in the world.

People should stop driving a lot. They should take public transport.

People should produce less rubbish.

People should use less energy. They should use more energy-saving electrical appliance.

so much

so many

so much

so many

The fish will die.

People do not have clean water for drinking.

The land is dirty.

so much

so many

so much

so many

We do not have safe land for farming.

The quality of soil is poor.

The water is dirty.

The air is dirty.

so much

so many