A model is a three-dimensional of a person/thing or of a proposed structure.
A mock up is a model or replica of a machine or structure, used for instructional or experimental purposes.
A prototype is a first or preliminary version of a device or vehicle from which other forms are developed.
Answer: Los profesores de química encontrarán información sobre el origen cósmico de ... Los elementos químicos nos rodean y forman parte de nosotros. ... sé que hoy no existía, porque los átomos, los protones, los neutrones y los electrones serían ... un alto número de protones en el Universo temprano convirtió al hidrógeno en el elemento dominante: el 95%.
Answer:
"If your neck is lighter than your face and you don't want your face to be as pale, choose one shade lighter than your face so its comparable. (You can always 'warm up' the face with bronzer if your complexion still appears light.) This way it's not too light or that much warmer than your neck."
Explanation:
The answer is composition.