Are you asking what animal, cause if so, sea turtle. It's why they bury their eggs
Can be a number of things, rain fall quota, climate, population, vegetation..any of those.
Answer: Aristotle and Ptolemy had both assumed each planet is attached to a single sphere, but geometers and astronomers could employ a number of such spheres to generate the observed motions of the planets.
Explanation:
They are alike cause you need them to build upon like bricks.
B) Crossing over is the correct answer to the question