Which best describes why winds at the beach change direction between day and night

Fashion21, Wind is cause by air being heated by the sun, you should know being in College, Heat rises, which causes the hot air to rise and the colder air to sink down to take its place, While the air sinks the air rushing down causes what we call wind. So the sun is the main reason we have wind because it is efficient at heating the air. At night due to the lack of heat, wind is somewhat little or no wind active.