D the expansion of their territory
Different heatings of the surface of earth.
air masses and fronts...
Im doing this assesment too and im pretty sure its d.
Answer:
archeologist
Explanation:
how old is this fossil?
what is the condition of this fossil?
was this fossil a land or water fossil?
Answer:
Subsidence
Explanation:
subsidence is a process where cold temperatures in the polar regions cause air to descend to create high pressure it's basically the difference in temperatures that make the pressure so high because hot atoms expand and becomes less dense and rise while cold air contracts and becomes more dense and falls. hope this helps