The more coils in an electromagnet, a. the weaker the magnetic force. b. the stronger the electromagnet. c. the greater the heat produced by the electromagnet. d. the quicker the magnet will lose its magnetism when the current is turned off.

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:

that is wrong, its not thymus.