All of the thousands of kinds of materials on the Earth consist of various combinations of simple materials called ____.
A)atoms
B)protons
C)elements
D)chemicals

Question

Quizplus · Accepted Answer

Atoms are the basic unit of matter and cannot be broken down further into simpler substances. Elements on the other hand are a type of atom with a specific number of protons in its nucleus. All materials on Earth are made up of different combinations of these elements. Therefore, the correct answer is C) elements.

All of the Thousands of Kinds of Materials on the Earth