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Fresh Water Ecology


Prevailing Winds:

Prevailing winds are located between thirty degrees and sixty degrees latitude north and south of the equator. They blow from the southwest to the northeast in the northern hemisphere and from the northwest to the southeast in the southern hemisphere.

Prevailing winds are responsible for the movement of most weather systems across the United States and Canada. Prevailing winds are also useful for sailing.


Trade Winds:

blow to the southwest in the northern hemisphere
blow to the northwest in the southern hemisphere
provide a dependable trade route in the northern hemisphere


Polar Easterlies:

blow from the northeast to the southwest near the north pole.
blow from the southeast to the northwest near the south pole.