Final answer:
A sea breeze originates during the day due to the different heat capacities of water and land, with cool ocean air moving toward the warmer land.
Step-by-step explanation:
A sea breeze usually originates during the day. This is because the specific heat capacity of water is higher than that of sand or concrete, meaning it takes longer for the ocean to heat up and cool down compared to the land. During the day, the land heats up faster than the ocean, causing the air above the land to warm and rise. This creates a low-pressure area. The cooler air over the ocean, which is at a higher pressure, moves in to replace the rising warm air, creating a sea breeze blowing from the ocean to the land. At night, the land cools down more quickly than the ocean, and the reverse happens. The cooler, denser air over the land moves towards the ocean, creating a land breeze.