#8) Explain why there are two high tides and two low tides each day. Strictly speaking, should the period during which there are two high tides be 24 hours? If not, what should the interval be?

The two high tides and two low tides create tidal bulges.

Explanation:

The tidal force exerted by the moon or gravitational pull creates bulges on both near and far sides of the Earth. Thus there are two high tides and two low tides.

As with the rotation or movement of the Earth the person will be carried through both the ends during any given period of the day including the period of 24 hours.