20 points
If you examine a piece of hail, it might have invisible layers like an onion.
Which answer best explains why this is true?
As hail falls, it picks up layers of dust and dirt from the air.
O
Hail forms layers because it melts as it falls towards the Earth.
O
Air pressure increase while the hail falls and it causes ice layers to form.
O
Hail builds up ice layers as it travels through updrafts in a storm before it falls.