Which of the following best describes the dashed line shown in the regular heptagon belbw?
A. Leg

B. Altitude

C. Diagonal

D. Apothem

Tides are caused by a differences in the gravitational force of the sun at different points on earth. differences in the gravitational force of the moon at different points on earth differences in earth’s gravitational field strength at different points on earth’s surfac fluctuations in the gravitational attraction between earth and the moon.