According to the video, Cambodia is one of the most （ ）dependant countries in the world. A: wetland B: farmland C: grassland D: highland

Disposed oil and many other items can be reused to（） A: make new materials B: preserve wetland and animals C: have clean air D: have clean water E: collect cigarette butte F: collect despoiled oil

Ryan，with the help of others，is fulfilling his dream of help African people to（） A: make new materials B: preserve wetland and animals C: have clean air D: have clean water E: collect cigarette butte F: collect despoiled oil

Which of the following is the best example of reclamation of disturbed lands? A: creating laws that regulate resource use to renew itself B: releasing captive individuals of a species now extinct in nature into a former home area C: growing crops on previous grazing land D: restoring plant life to a former mine area E: building a new wetland a mile away from one removed to make a highway

Of the following, which is the best example of reclamation of disturbed lands? A: restoring plant life to a former mine area B: growing crops on previous grazing land C: building a new wetland a mile away from one removed to make a new highway D: releasing captive individuals of a species now extinct in nature into a former home area E: creating laws that regulate resource use to renew itself