<span>The correct answer for the question that is being presented above is this one: "D. Tundra." This ecosystem is common in eastern and northern Siberia. Flora include mosses, summer flowers, and small shrubs. Animals include wolves, reindeer, foxes, and rabbits. The ecosystems that is described in the paragraph above is the tundra.</span>
Answer: [C]: plate tectonics .
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It is warmer and milder temperatures today, and back in the Ice Age it was colder and the summer seasons were much shorter.