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Page 1: Unit 7: Business and Environment Department
Page 2: Unit 7: Business and Environment Department
Page 3: Unit 7: Business and Environment Department
Page 4: Unit 7: Business and Environment Department

The acid rain

Page 5: Unit 7: Business and Environment Department

The Air Pollution

Page 6: Unit 7: Business and Environment Department

The global warming

Page 7: Unit 7: Business and Environment Department

The water pollution

Page 8: Unit 7: Business and Environment Department
Page 9: Unit 7: Business and Environment Department
Page 10: Unit 7: Business and Environment Department

Wastewater

Page 11: Unit 7: Business and Environment Department

Garbage

Page 12: Unit 7: Business and Environment Department
Page 13: Unit 7: Business and Environment Department

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