A.The severity of pollution nowadays
B.Pollution and its solution
C.Universal concern over environment
D.Consumption and pollution
A.were looking for better ways of seeking knowledge
B.were not satisfied with their past achievements
C.were trying to fit into the natural environment
D.were tired of working
A.Britain's leadership in the Industrial Revolution
B.The Industrial Revolution in countries like the U.S. and Germany
C.Great development of some Eastern Asian countries
D.The economic boom in Turkey and Brazil
A.it's own effort
B.ideas adopted from the west
C.diffusion of knowledge
D.exploiting mineral resources