the simplest substance is air
Carbon is a chemical substance found in the Earth but not formed by plants or animals.
rain
destiny
Because an element in itself is defined as the simplest form of any substance found on earth. So you cant take a simplest form of a fraction and make it smaller without changing it.
your fat mom.
There is no substance absolutely restricted to Earth (unless you count DNA, proteins, etc., but these are almost guaranteed to exist somewhere else).
no, because the simplest form of substance are elements
Proper grammar and English, I believe.
mineral
Petro is a refined substance made from crude oil.
No an element is the simplest form.
No an element is the simplest form.