Astream-like movement of ocean water far below the ocean surface is a gravitational current. coriolis current. surface current. deep current.

A stream-like movement of ocean water far below the ocean surface is a deep current.

Explanation: Gravitational current is the horizontal flow due to difference in densities.

Coriolis current is the apparent curving of path from an otherwise straight path due to earth's rotation.

Surface current are the horizontal movements of water at or near the surface of water driven by the wind.

Deep Current is the streamline movement of ocean that occurs far below the surface.

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-