Answer:
Touene
Formaldehyde
dibutyl
I am not fore shure but I belive Peroxide is the fourth.
Answer:
d I think
Explanation:
i think that this is right
Answer:
no.
Explanation:
time signature is used to mark the number of notes a measure can have
Ansel Adams was born in San Francisco,California on February 20th,1902 and got interested in photography when his aunt mary gave him a copy of "In The Heart Of The Sierras".