B nào nhanh sẽ dc 5s aaaaa

31. A

Dẫn chứng: The most obvious advantage of living green is that it helps reduce environmental pollution.  

32. C

Dẫn chứng: This is done by practising the 3Rs. The first R means choosing products very carefully to reduce waste as much as possible. Reusing involves the repeated use of items. The third R is about separating materials that can be recycled and later used for a new purpose.

33. C

Dẫn chứng: 

+ There are also economic benefits of living green.

+ Lastly, going green offers health benefits. 

34. B

Dẫn chứng: Furthermore, reusing products and materials is another way to make savings. It helps save on production costs...

35. A

Buy: mua

Purchase: tậu được, mua, sắm