Problems of the planet

A variety of environmental problems now affect our entire world. Some of the largest problems now affecting the world are Acid Rain, Air Pollution, Global Warming, Hazardous Waste, Ozone Depletion, Smog, Water Pollution, Overpopulation, and Rain Forest Destruction. Every environmental problem has causes, numerous effects, and most importantly, a solution. There are separate pages discussing each of these topics for every major environmental problem covered in this section.

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Unit 11-12

Unit 11

13. 1. She told him not to touch he switch with wet hands.

      2. She asked me what I had seen in the distance

      3. He asked her if she had got a pen.

      4. The museum guide warned us not to touch the exhibits.

      5. The teacher told us to be quiet.

      6. He asked me if I had spoken to Ann yet.

      7. He asked me why I hadn’t called the police.

      8. He told Jane he would need her help.

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