Atomic mass is the quantity of protons that have in a atom. Which atom have different numbers of protons, being able to be identified by them.
When two air masses meet together, the boundary between the two is called a weather front. At a front, the two air masses have different densities, based on temperature, and do not easily mix. One air mass is lifted above the other, creating a low pressure zone.
They both are actually the same thing
In 2009, the US Geological Survey estimated the Arctic may be home to 30% of the planet's natural gas reserves and 13% of oil.
Answer:
the third one because oceans don't affect the weather
Explanation: