Сfill in the prepositions where necessary. 1. environmentalists believe that global corporations are less accountable their actions than national companies. 2. since the new equipment was installed, the level of pollution has decreased 30 percent. 3. the lecturer was explaining the audience about the advantages and disadvantages of the process of globalisation. 4. some people disapprove global trends because they may make us lose our national identity but, on the other hand, globalisation offers new opportunities business, education, and culture. 5. it was not only ecologists-most people in the city were in favor closing the factory, though it meant the number of available jobs.