Answer:hydrogen sulfide, methane
Explanation:
As Earth cooled, an atmosphere formed mainly from gases spewed from volcanoes. It included hydrogen sulfide, methane, and ten to 200 times as much carbon dioxide as today's atmosphere.
Answer: The mid Atlantic Ridge and east Pacific rise.
Explanation: self explanatory:)
Explanation:
this is very difficult as Brainlist you have a good day at work and I will be there is no way to get to the bottom of this email and I will send the
<span>You will need to Multiply distance by the scale bar</span>