Explanation:

Here’s the thing—when we talk about what really drives changes in the earth’s weather, there’s one main player.

- Option 1: Altitude

- Altitude affects local weather. For example, it’s colder up in the mountains. But altitude isn’t what causes global weather changes—it just influences the weather in certain areas.

- Option 2: Tides

- Tides are mostly about the movement of water in oceans and seas, driven by the moon’s gravity. They don’t control the weather.

- Option 3: Sun

- This is the big one.

- The sun heats up the earth’s surface unevenly. That drives wind, forms clouds, starts storms—basically, it’s the engine behind all weather.

- Option 4: Moon

- Like the tides, the moon’s influence is mostly limited to those water movements. It doesn’t impact whether it rains or not, or how hot it gets.

So, your answer is spot on: