Explanation:

 • When the moon is in the first and last quarter, the ocean waters get drawn in diagonally opposite directions by the gravitational pull of sun and earth resulting in low tides. These are called neap tides.
• High tides are called spring tides. These raise the water level close to the shores. This helps the ships to arrive at the harbor more easily. The high tides also help in

fishing many more fish come closer to the shore during the high tide. The rise and fall of water due to these tides is being also used to generate electricity in some places.