66. "The confusion" in the first paragraph refers to ____.

1. where to spend or invest in a sustainable way
2. an array of consumer products to choose
3. a fog of unreliable green information
4. little information on eco-credibility

67. From The New Scientists analysis it can be inferred that in many cases ____.

1. eco-credibility is abused
2. a green economy is crucial
3. an environment impact is lessened
4. green credentials promote green economy

68. From unverified claims to difficult measurements and then to individual products, the author suggests that ____.

1. eco-credibility is a game between scientists and manufactures
2. neither scientists nor manufactures are honest
3. it is vital to build a green economy
4. better information is critical

69. To address the issue, the author is crying for ____.

1. transparent corporate management
2. establishing sustainability indexes
3. tough academic-led management
4. strict legal weapon

70. Which of the following can be the best inference from the last paragraph?

1. The toughest challenge is the best opportunity.
2. It is time for another green revolution.
3. Information should be free at all.
4. No quantity, no quality.

(Reference keys.)