I think its Landslide.
Reason : landslide is the movement of earth or rocks (Mass movement ) on the cliff or mountain (along teh curved surface) .
Your answer is........C. Speed
Answer: As altitude increases, the spacing between particles increase.
Explanation: There is less gravity when altitude increases to compact the particles together and particles are more free flowing to move around. Therefore the particles aren't as close together, increasing the amount of space in between them.
Answer:
the GENUS name of this group of mice is a Mus
