The answer is difference in density. We know that the high central density suggests the earth must be rich in nickel and iron and that much of the core must be liquid. This lower-density air then rises and is replaced by cooler, higher-density air. The result is atmospheric circulation that drives the weather and climate through redistribution of thermal energy.
because weight depends.upon gravity and mass but gravity on earth d differs from gravitu on moon
Answer:
the deoxcenated blood is ejected out of the body
The two body systems are the muscular system and the skeletal system.
