How are tides caused?

Following are the causes of tides:

1. Gravitational Force — The gravitational pull of Moon and the Sun cause the tides. The influence of moon is more due to its proximity to earth.
2. Influence of the Moon — The Earth is pulled towards the Moon more than the water on the other side of earth therefore, water lags behind and rises up on the side facing the moon, forming high tide.
3. The rotation of the Earth — It results in every meridian coming into the position of two high tides and two low tides nearly every 24 hours. Since Moon travels in its orbits in the same direction as the Earth is rotating it takes about 24 hours and 52 minutes or one lunar day for the sequence of two high and two low tides to be completed.