Answer:
The earliest known case of infection with HIV-1 in a human was detected in a blood sample collected in 1959 from a man in Kinshasa, Democratic Republic of the Congo. (How he became infected is not known.)
Explanation:
Google
Answer:
C
Explanation:
Because people could breathe naturally smoking a cigarette. So saying that its less inhaled is false.
Answer:
Option 2
Explanation:
don't don't hold me to this but I think it's decreased trade among countries has caused whittling world economy because that is a problem and problems are typically a push factor