Answer:
-Electric fans have a motor that moves blades that are attached to a central rotating hub.
-Fans circulate air to cool and ventilate rooms and to control humidity.
-The electric fan has blades similar to a water or steam turbine
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Answer:
-Electric fans have a motor that moves blades that are attached to a central rotating hub.
-Fans circulate air to cool and ventilate rooms and to control humidity.
-The electric fan has blades similar to a water or steam turbine