In the theory of plate tectonics, how should you picture the earth?
A. The plastic atmosphere floats on the lithosphere.
B. The continents are held in place by the solid core below.
C. The crust is like pieces of a puzzle, slowly moving.
D. The mantle is like pieces of a puzzle, slowly moving.

In general, how long does it take to accomplish a long-term goal? a.a few days to a weekb.a few weeks to a monthc.a few months to a yeard. more than a year

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.