Answer:
Option 3 (Snow accumulates on land and doesn't melt)
Explanation:
An iceberg is different than a glacier because a glacier is literally a big terrestrial ice chunk.
I don't have time to help with the others and I couldn't see them sorry!
Natural Selection, as described by Charles Darwin
They have different types of cell walls and cell membranes.
Answer:
I believe the answer is D for the top one