In the paleoatmosphere, the primary gases were oxygen, carbon dioxide, nitrogen carbon dioxide, nitrogen, and water vapor oxygen and water vapor carbon dioxide and oxygen

The paleoatmosphere refers to the Earth’s atmosphere in the geological past. The paleoatmosphere was dominated by nitrogen, carbon dioxide and methane. These gases are generated by the radioactive decay of Potassium. During this pre-biological atmosphere, it is thought to have been reducing, to have highly contained virtually no free oxygen, and virtually no argon. Therefore the major gases on this period are the Nitrogen and Carbon Dioxide.

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter