What is the main difference between the alpine tundra and the arctic tundra?
a.
the alpine tundra includes trees.
b.
the alpine tundra occurs on mountaintops.
c.
the alpine tundra has no animal life.
d.
the alpine tundra has lower temperatures.
a is wrong

I believe it is (B) The alpine tundra occurs on mountaintops.

b.  The alpine tundra occurs on mountain tops.

Explanation:

The tundra is the coldest of all the biles and it's trees less plain and is noted for its frost molded landscape has extremely low rainfall, low temperature and it has a short growing season.  The alpine tundra is located in the mountain of the world through a high latitude where the trees cannot grow and have approx 180 days. The temperature usually below freezing and the natural vegetation comprise of the grasses and shrubs and small trees. The arctic has a growing season of 60 to 80 days, rainfall may vary in different regions and a layer of permanently frozen subsoil exists.

The answer is 1-plate movement along fault lines