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4. In general,
air masses tend to flow toward the
masses tend to flow toward the
planet's
This brings
down areas that are warm. It is one of the many processes that act towards
Air masses are slowly
When an air mass moves over a new region, it shares its
with that region. So the temperature and humidity of a particular location depends partly on the
that sits over it.
characteristics of the
and
to cold areas and
air
out the
along by high-level