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>
The percentage of the increase of iron is 50% because it increased by 0.6 and that's 50% of 1.2mg
The answer is 3%
Explanation:
3% of the earth's water is fresh. 2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost. 0.5% of the earth's water is available fresh water.
3 metamorphic, ignious and sedimentary
