Answer: Hello, a thing that is composed of two or more separate elements; a mixture.
Explanation: A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound This can help you find the answer cause i cant see the answer chocies
Elements pass from one organism to another and among parts of the biosphere through closed loops called biogeochemical cycles, which are powered by the flow of energy.
