41. If you're looking for a way to make a positive impact on the earth, it's a good idea to start out by taking steps to help the environment by recycling.
A. pessimistic B. good C. neutral D. radical
42. The cotton industry uses an obscene level of pesticides, and there is a lot of energy that goes into creating even a blank T-shirt.
A. is put into B. flows into C. spends D. is wasted
43. Limestone mountains are distributed mostly from the north to Quang Binh, with evergreen forests having many species of fauna and flora.
A. vegetation and creature B. animals and plants
C. insects and flowers D. forests and seeds
44. I highly appreciate Mr. Harrison's practical advice on minimizing deforestation.
A. supportive B. realistic C. constructive D. decent
45. The production of new paper from wood pulp consumes vast amounts of energy.
A. wastes B. uses C. emits D. limits
