Make words in a with words in b to make word combinations. a 1. acid 2. tropical 3. public 4. global 5. ozone 6. nuclear 7. traffic 8. natural 9. air 10.greenhouse b a) disaster b) layer c) warming d) rain e) rainforest f) effect g) transport h) jams i) pollution j) energy

1. traffic jams. 2 . ozone layer. 3. acid rain 4. tropical rainforest 5. nuclear energy 6.natural disaster 7. air pollution 8 . greenhouse effect 9 . global warming 10 . public transport