It is bad to litter because that is harming the environment. When you throw out a can, it can harm a animal or several animals. Litter can also sink into the ground (I think) and harm the plants growing.
Its the Eccentricity of the earth. (shape of Earth's Orbit around the sun, whether it is more circular or ovular.)
More enzymes more useful collisions
It is A. Lung tissue i believe.
Answer:
Sublingual glands are located under the tongue and the submandibular glands are beneath the jaw. Without these crucial salivary glands, the mouth would not be able to maintain tooth health nor moisture of any kind.