"T or F "ạ , nhanh vs e giúp ạ .

25. True

- Dẫn chứng: Motor vehicles, factories and other sources create so much air pollution that it may hang in the air like dirty fog.

26. False

- Dẫn chứng: Air pollution threatens the health of the people who live in cities.

27. False

- Dẫn chứng: City wastes cause water pollution when they are poured into the waterways.

28. True

- Dẫn chứng: In addition, many large cities have difficulties in disposing of their garbage

29. True

- Dẫn chứng: Citizens, governments, industries, scientists and business people must work together ...

30. False

- Dẫn chứng: Foe example, most cities have introduced recycling programmes.