In the paleotmosphere, water vapor <span>was able to condense to form clouds and rain because the earth's surface cooled as there were fewer meteorite impacts.
answer=water vapour
hope this helps....</span>
There's a calculator in this planet earth just use that. It's easy
The Great Migration, or the relocation of more than 6 million African Americans from the rural South<span> to the cities of the North, </span>Midwest<span> and West from 1916 to 1970, had a huge impact on urban life in the </span>United States<span>.</span>
1. portable 2. network 3. graphics