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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:
A ranch increases its profits by expanding from 400 to 800 cattle without buying or renting additional land.
Explanation:
I got 100% on gradpoint.
Answer:
show the atomic number and atomic mass of cesium in your options
