Ask
your own question, for FREE!
Biology
9 Online
OpenStudy (anonymous):
Which mixture of gases is thought to have made up Earth's early atmosphere? A. methane, oxygen, hydrogen, water vapor B. carbon dioxide, nitrogen, oxygen, ozone C. hydrogen, water vapor, ammonia, methane, carbon dioxide D. ozone, water vapor, carbon dioxide, ammonia
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
B
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!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Countless7Echos:
Aye.. I need actually some help on the shading here.. if the light is from above too I just feel something is off.
kaelynw:
tried a lil smt, the arm is off but i like the other stuff
Countless7Echos:
I don't know just no sketch doodle day :p finished a video already so I'm pretty
Ferrari:
Depression Hi, it's me, Jordan (ferrari). It's supposed to be the Fourth of July but I feel kinda depressed and mad at myself for no reason.
Countless7Echos:
Aye.. I need actually some help on the shading here.. if the light is from above too I just feel something is off.
4 hours ago
19 Replies
3 Medals
kaelynw:
tried a lil smt, the arm is off but i like the other stuff
16 hours ago
27 Replies
3 Medals
Countless7Echos:
I don't know just no sketch doodle day :p finished a video already so I'm pretty
2 days ago
9 Replies
2 Medals
Ferrari:
Depression Hi, it's me, Jordan (ferrari). It's supposed to be the Fourth of July but I feel kinda depressed and mad at myself for no reason.
2 days ago
13 Replies
1 Medal
