I'm not 100% sure... but I would say B.
Answer:
is the outermost layer of the atmosphere
Answer:
I think the cream areas are places that are in different altitude than the blue parts
Explanation:
Answer:An ice age is a period of colder global temperatures and recurring glacial expansion capable of lasting hundreds of millions of years.
Explanation:These global cooling periods begin when a drop in temperature prevents snow from fully melting in some areas. The bottom layer turns to ice, which becomes a glacier as the weight of accumulated snow causes it to slowly move forward. A cyclical pattern emerges in which the snow and ice traps the Earth’s moisture, fueling the growth of these ice sheets as the sea levels simultaneously drop.