17.

a. However, this scenic landscape complex may be adversely affected by mass tourism. b. This kind of tourism can result in environmental degradation, such as pollution of rivers and caves, erosion of trails and disturbance of wildlife. c. Trang An (Ninh Binh province), the first site in Vietnam to be recognized by UNESCO as a mixed World Heritage Site, is famous for its outstanding karst landscape and important cultural landmarks. d. To preserve Trang An, it is recommended that Vietnamese people increase their awareness of the site’s significance, actively participate in responsible tourism practices and support local communities. e. Another problem might be young people’s lack of knowledge about the cultural heritage, which causes inappropriate behaviors and insufficient support for conservation efforts.

A

c-a-b-e-d

B

b-c-d-a-b-e

C

c-e-a-b-d

D

c-b-d-e-a

Question 13 - 17

Đúng: 40/40

13

14

15

16

17