Explanation:
Brittleness is a characteristic that describes chalk. Its color and shape also describe the chalk. Any such characteristic of a material that you can observe without changing the substances that make up the material is a physical property
Gold is metallic, with a yellow colour when in a mass, but when finely divided it may be black, ruby, or purple. It is the most malleable and ductile metal
Carbon is a component of so many elements because <span>It can form stable compounds with other elements
and also bond with them.</span>
The answer is A, biogeochemical cycles.
The answer should be false. Elements contain only one atom.