You are given a sentence and your task is to generate another sentence that supports the given input.

Original Horizontality This principle says that sedimentary rock layers are laid down flat originally and that if you find sedimentary layers which are not flat, they have been deformed since deposition.
If a sedimentary rock layer is not horizontal, it is deformed.

Animals also eliminate waste nitrogen as urea in the urea cycle.
Animals can transport the waste material known as urea in the circulatory system and store it safely at high concentrations.

All the elemental oxygen now in the earth's atmosphere was put there by photosynthetic plants and bacteria.

On a global scale, plants and other photosynthetic organisms have generated all of the oxygen in the air.

