Question

what is one way to describe elements? they are the building blocks of matter. they are the most expensive materials on earth. they break down easily. they are the smallest particles of any material.

Explanation:

Elements are fundamental substances that cannot be broken down into simpler substances by ordinary chemical means. They are the building - blocks of matter as all matter is composed of elements or combinations of elements. The other options are incorrect: not all elements are the most expensive materials on earth, elements are not easily broken down (they are pure substances), and the smallest particles of matter are atoms (and sub - atomic particles like protons, neutrons, electrons), not elements.

Answer:

They are the building blocks of matter.