What can green chemistry be described as？

A、Green tea.

B、Black tea.

C、Yellow tea.

D、Dark tea.

Colleges in the US have added a new subject, "green chemistry", to their curriculum(课程) today. "Green chemistry 【B1】______ how we can develop products that won't 【B2】______ the environment, "explains Paul Anastas, director of Yale University's Center for Green Chemistry and Green Engineering. It opened at the beginning of this year. The American Chemical Society, 【B3】______ approves more than 600 college chemistry programs, only lists about a dozen that teach green chemistry. But that 【B4】______ is growing.

Cambridge College in Massachusetts is offering "an introduction to green chemistry" course this fall and is offering the nation's first bachelor's and master's 【B5】______ in green chemistry. The program will have classes in environmental science and even environmental 【B6】______ and policy. These subjects are not 【B7】______ taught to chemistry majors.

Employers 【B8】______ the introduction of green chemistry. Businesses are increasingly seeking graduates 【B9】______ backgrounds in the subject because it can help them make or save money in the development and manufacturing of products. "We need people who can not only understand their place 【B10】______, but also understand the worldwide perspective", said Adam Peterson, a chemicals division manager at Dow Coming Corp.

【B1】

A．looks on

B．looks in

C．looks at

D．looks after