Write a complete scientific explanation to account for why the ball that was moving faster caused more flour to spread out.​

It is due to the large impulse is imparted on the flour.

Explanation:

A ball is moving faster.

When a ball is moving faster strikes to the flour, the change in momentum is large and thus the impulse imparted on the flour is large.

Impulse = change in momentum

So, as the flour experiences large impulse and large momentum so that the flour spreads out.

If the change in momentum is large so the flour spreads out is more.  

The melting of the polar ice cap

Explanation:

Cosmology comes from the words "kosmos"  i.e. "world" and "logia" i.e. "study of". So basically it is the study of our world i.e. universe. technically speaking it the branch of Astronomy that focuses on origin of Universe, its dynamics and future of the universe.

Here the option "The melting of the polar ice cap" is not related to origin and fate of the universe and thus not studied in Cosmology.