Deep water circulation is controlled primarily by inflows from the Atlantic Ocean, the Red Sea, and Antarctic currents.

The Syrian opposition, a crucible of widely different groups and currents including Al Qaeda will most likely become even more radical following Morsi s ouster.

India s national elections are really an aggregate of thirty different state elections, each influenced by its own local considerations, regional political currents, and different patterns of political incumbency.

Two antennae ( feelers ) are attached to the head these organs detect chemicals, air currents, and vibrations they also are used to transmit and receive signals through touch.

Deviation refers to the response of the compass to local magnetic fields caused by the presence of iron and electric currents one can partly compensate for these by careful location of the compass and the placement of compensating magnets under the compass itself.