Question

the picture shows sunspots drawn by galileo on june 21 and june 26 in 1612.
june 21
june 26
which of the observations on the two days best shows that the sun is rotating?
a the sunspot m is breaking apart.
b the sunspot r is growing in size.
c the number of sunspots is increasing.
d the sunspots are in different positions.

Explanation:

Solar rotation causes sunspots (which are fixed relative to the Sun's surface) to appear to shift position over time. Changes in sunspot structure, size, or count are due to sunspot evolution, not solar rotation. Only the positional shift directly demonstrates the Sun's rotation.

Answer:

D. The sunspots are in different positions.