Although the moon revolves around earth, only one side of the moon is visible from earth. This is because:

The Moon does not rotate about its axis.

The Moon rotates in the opposite direction to that of Earth.

The rate of revolution of the Moon and Earth is the same.

The Moon completes one full rotation for each revolution around Earth.

The Moon is tidally locked with Earth, meaning that its rotation period is the same as its orbital period. This causes one side of the Moon to always face towards Earth, while the other side remains hidden from view.