What causes us to see diffrent phases of the moon like full, half and crescent?

Answer: The rotation of the moon around the earth

Explanation: The phases of the moon depend on the moon's position compared to the earth and the sun. Remember that the moon revolves around the earth. As the moon goes around the earth, half of the moon is always illuminated by the sun. Meanwhile the other half of the moon is always in darkness. Some times we see the parts being illuminated and sometimes we do not