WHAT’S HAPPENING TO OUR ENVIRONMENT?

Exhaust fumes cause a lot of ..., especially in big cities.

Everyone should learn to ... (= save) energy. Using lights / lamps only when needed is a good way to do this.

Nancy is ... about pollution. This is why she walks to work instead of driving.

... is much healthier than driving, and it doesn’t pollute the air.

David conserves water by not letting it... when he’s not using it.

I’d like to conserve water. But I feel dirty if I don’t ... three times a day!

Many unethical companies ... their waste into rivers.

... , which is partly caused by exhaust fumes from cars, is a very big problem in many big cities across the world.

... rain occurs when pollution in the air is absorbed by water droplets in clouds.

a) dirty                                  

b) acid

Oil... pollute sea water and kill marine life.