What causes the daily path of the Sun to change its high point throughout the year?

Answer

The slow annual drift of Earth in its orbit (approx. 1 per day)

The Earth shifts its position around the Sun by about 1 each day as it completes its yearly orbit, which is the slow, annual drift responsible for changing the Sun's noon altitude.

What causes the daily path of the Sun to change its high point throughout the year?
locationsunastronomysolar system