My mom gets B12 shots. What are these for and do I need to be worried about B12 deficiency? Why do you get a shot and what can I eat instead?

d.

explanation:

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:

a

explanation:

i think its white blood cells

i hope this