Lesson 2. Nature and the Environment » 11

Стор.66 11. Solve the environment crossword. Across: 4. To process used objects so that they can be used again. 5. Lots of trees form it. 8. The problem of the rise in temperature of the Earth's atmosphere is called global... 9. A mixture of smoke and fog. 10. The rain that falls from clouds and contains harmful chemicals. Down: 1. To make air, rivers, etc. dirty. 2. To damage something so badly that it no longer exists. 3. Weather conditions of a particular place. 6. This layer protects the Earth from dangerous rays of the sun. 7. Gas which is sent out into the air.