One reason is that the plates float on a hot boiling mentle. when the heat rises and the mentle expands the plates above it also moves.
the other reason is that the plates themselves move.plates have warmer inner sides that tend to rise. and colder outer side that tends to sink. this tug of war between the hotter and colder sides of the plate also helps them move.
Quaternary period<span>, Cenozoic </span>era<span>, and Phanerozoic </span>eon<span>.</span>
Did any of them feature older actors? ... Each culture has a certain set of expectations and assumptions about aging, all of ... In North America, the experience of being elderly has changed greatly over the past century.
Answer:
An egg, it is solid at the core, surrounded by liquid and then a hard outer shell
Explanation:
The eggshell represents the crust, which is solid and thinnest layer, the albumin represents the mantle that is ‘liquid’ while the embryo represents the core which is solid.