Energy sustainability can best be achieved by using a. nonrenewable energy sources b. renewable energy sources c. carbon sequestration d. recycled plastics  

I think that the answer is B as well

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:

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: