Vaccines are used to prevent infections, usually viral.
Some antibiotics act by killing bacteria.
Well, pollution has to do with littering in the water? If so, I'm thinking that it would have to do with activities such as swimming, diving, and possibly ice hockey? Not so positive on the hockey part though?
The pollution of the water would create chemicals that would spread throughout the water and if someone went into the water, it could effect their lungs since you are breathing it.
It's basically like when you forget to put the top on your hot tub and you get algae.
Decongestants tend to unblock your nose and chest, it depends or how clogged you feel. An antihistamine is supposed to block or slow the release of histamine, which produces the excess mucus. If your nose is running and you are sneezing, you may can get by with just an antihistamine. Now if you are like me and woke up sneezing your head off, but your lungs and nasal passages are still clogged, you need to take the decongestant too.
Do Uu need help with all of them ?
Answer:hi no help needed thanks tho
Explanation: ;P
