Because the higher you will go this colder it will get or depending which mountain you are aiming for just like Mount Everest.
<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>