Which of the following is not a source of groundwater pollution?
a.
landfills
b.
septic tanks
c.
smoke stacks
d.
fertilizer

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,

cuz some people don't have enough food. that's why we need more ppl to donate food to the hungry.