Question

the air at the beach is usually calm in the early morning. as the sun rises, a breeze begins to blow in from the ocean onto the beach. which statement below best explains this wind pattern?

during the day, the air over the beach heats up and begins to rise, resulting in a low - pressure area.

during the day, the air over the water becomes more dense as water vapor from the ocean rises, resulting in a breeze.

during the day, the air over the water heats up, expands and blows in from the ocean onto the beach, resulting in a breeze.

Explanation:

To determine the correct explanation for the beach breeze:

1. Recall the concept of sea - land breezes. Land (beach) has a lower specific heat capacity than water. So, during the day, the beach heats up faster.
2. When the air over the beach heats up, it becomes less dense and rises, creating a low - pressure area. The cooler, denser air over the ocean (high - pressure area) then moves towards the beach (low - pressure area) to replace the rising warm air, causing the breeze.
3. Analyze the options:

• Option 1: "During the day, the air over the beach heats up and begins to rise, resulting in a low - pressure area." This matches the sea - land breeze concept.
• Option 2: The density of air over water due to water vapor rising is not the main reason for the sea breeze. The main reason is the temperature difference between land and water.
• Option 3: Water heats up more slowly than land, so the air over water does not heat up, expand, and blow onto the beach in the way described.

Answer:

The correct option is the first one: "During the day, the air over the beach heats up and begins to rise, resulting in a low - pressure area."