Question

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.

Answer 1

that website I gave you before should provide you with that answer.
http://www.ucmp.berkeley.edu/glossary/gloss5/biome/tundra.html

Answer 2

Its B.

http://www.mce.k12tn.net/animals/environments/arctic_alpine_tundra.htm

Answer 3

Since " The Alpine tundra is a large, flat or gently sloping, treeless tract of land above the timberline." We would eliminate option A)

It is a ecosystem and has biome / living organisms therefore we would eliminate C)

It has lots of mountains, slopes a.k.a peak...so the best choice is definately B)