During spring tides * gravitational forces of the moon and sun work against each

During spring tides * gravitational forces of the moon and sun work against each other causing the tidal
range between high and low tides to be at their smallest difference.
gravitational forces of the moon and sun combine creating a strong pull on the earth's
oceans and results in the greatest tidal range differences of a lunar month.
the sun, earth and moon are arranged at ninety degrees to one another.