What is neaptide?

Answer 1

Tides are fluctuations in the height of bodies of water due to the gravitational effect of the moon. The water is high when the moon is directly overhead or on the other side of the world and low when the moon is on the horizon. This effect can be greater or lesser depending on whether the sun's gravitational effect is added to that of the moon. At full moon and new moon, when the moon is lined up with the sun, the tidal effect is at its greatest. This is called spring tide. But at the quarters the sun's gravity counteracts that of the moon and the tidal effect is less. This is called neap tide.