Answer:They occur when the Earth, the Sun, and the Moon are in a line. The gravitational forces of the Moon and the Sun both contribute to the tides.Spring tides occur during the full moon and the new moon. During the moon's quarter phases the sun and moon work at right angles, causing the bulges to cancel each other.
Neap tides occur during the first and third quarter moon, when the moon appears "half full." NOAA's tide and tidal current predictions take into account astronomical considerations due to the position of the moon and the sun.
Step-by-step explanation: