PLEASE HELP QUICKLY Why does knowing when a pandemic is over matter?

As a matter of epidemiology there's no clear cut criterion. That determines a pandemic to be over. You can't sign a treaty with a virus

relationship between pressure and air volume and led to the understanding of how respiration works; i believe this is the correct answer ; /// good luck

for respect usually. some people might be little awkward if you meet or some would be different. usually   you dont love people when you meet them depends on the type of person.

hope this