Answer:
Sublimation is conversion of solid of vapors on heating and vapors to solid on cooling. The solid which undergoes sublimation is called sublime, whereas the solid obtained by cooling vapors is called sublimate.
It is 4 because you need to add the 0's
Water's chemical equation is H2O, which would mean that there are 2 hydrogen atoms and one oxygen atom
Answer:
A. the changes in the characteristics within a population that lead to survival.
Explanation:
those that cannot camoflauge or find a way to survive and reproduce, will die off.
The layers above would be not as old and the layers below would be the older layers.