Question

the circular movement of material in the mantle that drives plate movment is called ____.
conduction
subduction
compression
convection
plates that move apart from each other are a

divergent boundary
convergent boundary
transfrom boundary
subduction boundary
what is biodiversity?

the variety of animals on earth.
the variety of species that inhabit the earth
the loss of species over time
the generation of new life forms

Explanation:

First Question:

Conduction is heat transfer through direct contact, subduction is one plate going under another, compression is a force that squeezes. Convection is the circular movement of fluid (or in this case, mantle material) due to heat, which drives plate movement.

Convergent boundaries are where plates move toward each other, transform boundaries (note: "transfrom" is a typo, should be "transform") are where plates slide past, subduction boundary is a type of convergent. Divergent boundaries are where plates move apart.

Biodiversity is the variety of life. The first option is too narrow (only animals), the third is extinction, the fourth is speciation. The second option, variety of species on Earth, is the correct definition.

Answer:

D. convection

Second Question: