Explain how this demonstration models the way in which the intensity of sunlight shining on Earth changes over the course of the year. Be detailed in your explanation.

The earth rotates on its axis in anticlockwise direction, the angle of sun rays produces seasonality.

Explanation:

It's a fact that the amount of solar intensity and daylight varies form place to place on the surface of the globe as the earth is not flat nor it's completely a sphere. As it has bulges around the equator that is a greater circle which gets most of the annual sunlight at 90° angle and is due to its location in tropics. While the places located near the poles have fewer hours of sunlight as of low duration as the rays of the sun take more time to moves from a low angled path. These north and south poles are impacted by seasonality and have 6 months of day and night.

The answer is a if u read the definition it makes sense