Answer:
They have a shared economy.
They allow easy migration
<span>The countries that border England are Wales and Scotland. Scotland to the north and Wales to the west.</span>
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B. In the twentieth century alone, the world population grew by more than 5 billion people.
C. Population grew slowly until the eighteenth century because death rates were higher.
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The answer to your question is: D. rainfall and ocean waves.
Looking at both figures shows that rain and the waves have changed the terrain.
