Which statement supports the hypothesis that life has changed over time? a. prokaryotic cells lack both a nucleus and membrane-bound organelles. b. fossils of some ancient organisms differ from modern forms of life. c. organisms differ from one part of the world to another. d. the atmosphere of the early earth was different from today’s atmosphere.

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation: