The regular rising and falling of ocean water due to the gravitational pull of the sun and moon is called
a.
a tsunami.
b.
the tide.
c.
a hurricane.
d.
the doppler effect.

The regular rising and falling of ocean water due to gravitational pull of the sun and moon is called: B - The tide

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It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).