Earth's Second Atmosphere The second atmosphere, which was the first to stay with the planet, formed from volcanic outgassing and comet ices. This atmosphere had lots of water vapor, carbon dioxide, nitrogen, and methane but almost no oxygen.
Valleys can be found in areas where there are alot of Mountains, Canyons can be found in places near rivers, plains are found in central North America, and Volcanoes can be found on islands.
Answer:
oh shoot did this like in 8th grade now I dont remember anything my bad
Explanation:
lol
Answer: north
Explanation:The Middle East and North Africa are two regions that are often grouped together because they have many things in common. Islam is the dominant religion in the area and almost everyone speaks Arabic. Most of the Middle East and North Africa is composed of desert land where very little rain falls.