3.b 4.I think all of them but im pretty sure its D. 7.A 10.A
Who are you talking about could you explain more
Answer:
History is the study of past events while Social history concentrates upon the social, economic, and cultural institutions of a people
Answer:
Touene
Formaldehyde
dibutyl
I am not fore shure but I belive Peroxide is the fourth.
