Fog is a cloud that has its base at or near the ground.
Answer:
D. its base at or near the ground
I think it would be hanging valley.
Mountains support Wegeners idea by how he saw that the same species on one mountain was the same on a different one thus causing him to believe that the earth is forming or making mountains in some way.
Answer:
Each cell expresses, or turns on, only a fraction of its genes. The rest of the genes are repressed, or turned off. The process of turning genes on and off is known as gene regulation. ... Gene regulation also allows cells to react quickly to changes in their environments.