During the day, the land by the sea is heated by the sun. Through convection, this heated air rises upward and then in order to replace this heated air, cooler air is drawn from the surface of the sea, creating a sea breeze.
when land is heated, the air above it also gets heated, which makes it to start rising. This is due to the fact dat hot air is lighter dan cold one. this gives rise to a phenomenon nwn as convection current. this is the reason of presence of moderate climate in coastal areas.
the convection currents of lava underneath the earth's crust move the earth's crust. convection current is magma being heated, and is pushed to the crust, it then cools and sinks to the bottom, where it is to be heated again.
The air is in direct contact with the heated earth (conduction). Heat rises and is replaced by cool air, and that is when we feel a breeze (convection). The heat rising in waves is also known as radiation.