The polar air masses are air masses that form on the high latitudes, in the polar regions. The tropical air masses are air masses that form on the low latitudes, around the equator.
The polar air masses are cold air masses. They are also dry, very dense, and have much higher air pressure. The tropical air masses are warm air masses. Depending have they formed over land or over sea, they can be either dry or moist, and they have low air pressure as they are much less dense.
A typical polar air mass brings in cold and dry weather, while the tropical air mass brings in warm weather, with either lot of precipitation, or being very dry.
The polar air masses are moving from the high latitudes toward the lower latitudes, while the tropical air masses are moving from the lower latitudes toward the higher latitudes.
Their polarity can be reversed
"I would say the transformation would be say when the ocean floor rocks are pushed under the continental crust in the zone of subduction, then those rocks will melt as they descend into the deep crust or mantle and be converted into magma which will then rise upwards towards the surface."
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Answer:
An official language is one which has designated as the main language for business, education, government and administrative affairs.
Explanation:
The official language of a country is not always the most spoken language. Many countries also have multiple official languages.
In the case of Canada, English and French both have official status even though English has more speakers than French at a national level.
An example of a country where a colonial language is used by the government but is not understood by a majority of the population is Senegal. French is the administrative language, but only around one-fifth of Senegalese understand French.
I think its C but I could be wrong, but I think it's c because water vapor evaporates in the atmosphere due to the heat off the sun and it turns to water again and then the water heats up and turns into vapor.