Refer to the Figure

question 9

Essay

Refer to the figure.
Figure 3
Figure 3 shows long-term patterns of continental movement for five large land masses, illustrating the location of the land masses during an active period of land mass movement, at about 40 mya. The arrows indicate the direction of land mass movement and the numbers indicate the approximate timing (mya) of these events. Use the direction of the arrows and the timing of the events to answer the following questions:
a) When did land mass 2 split from land mass 4?
b) Which land masses joined between 180 and 20 mya?
c) Which land masses joined most recently?
d) What process could account for the movements of these land masses?

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