Ask your own question, for FREE!
History 17 Online
OpenStudy (anonymous):

Which of these is produced when fossil fuels are burned? A) oxygen B) nitrogen C) hydrogen D) carbon dioxide

OpenStudy (katherinkoon):

d but you are asking science questions in history so go to science plz

OpenStudy (katherinkoon):

hello

OpenStudy (anonymous):

i came here cause no one wold help in science

OpenStudy (katherinkoon):

oh sorry

OpenStudy (katherinkoon):

d

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!