Mrs. hernandez has considerable pain and swelling in her wrists, fingers, and knees. it is becoming very difficult for her to maintain her usual routines as her stiffness increases. mrs. hernandez has:

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:

b. the carbon cycle ensures living things have a source of hydrogen