Question

what is the main cause of earth tides?
gravitational pull of the earths core
atmospheric pressure changes
gravitational pull of the moon and the sun
magnetic forces from the suns drift

Explanation:

Tidal forces on Earth are generated by the gravitational attraction of celestial bodies. The Moon is the primary contributor due to its proximity, and the Sun also exerts a secondary gravitational pull that modulates tides. The other options are unrelated to the main cause of tides.

Answer:

Gravitational pull of the Moon and the Sun