Describe HOW plate tectonics works, using the 2 Earth’s Layers Asthenosphere + Lithosphere.

Which outcome is not caused by gravitational forcea. gas and dust come together to form a planet b. planets orbit a star c. two atoms come together to form a molecule d. stars cluster to form a galaxy

What is the difference between a tundra and a taiga?

If the same organisms appears on two different continents, this is evidence of