CHEM 1001 : Practice Exam 1-1
Document Summary
Pasteur discovered and explained the source of fermentation (yeast). The discovery, investigation and use of antibiotics, a class of chemicals that kill bacteria associated with infectious diseases, has dramatically reduced this cause of death. This is an example of the: baconian dream, carsonian dream, baconian nightmare, carsonian nightmare, chlorofluorocarbons (cfcs) are synthetic chemicals that find a variety of important applications. Probably the widest use of cfcs was as refrigerants in refrigerators and air conditioners. Cfcs have been implicated in the destruction of the ozone layer. This is one example of the: baconian dream, carsonian dream, baconian nightmare, carsonian nightmare, ddt was widely used as an insecticide during and following world war ii. However, the egg shells of birds that live in areas where ddt was used were very thin, and the young did not hatch. The pills were also found to be about as effective as placeboes in promoting sleep.
