___________ cannot be further divided into simpler components. Whereas, ___________ is composed of two or more simple substances.
element, compound
An element is a simple substance which cannot be further divided into simpler components. A compound is a substance formed due to the chemical combination of two or more elements.
For example, water consists of hydrogen and oxygen. Hydrogen and oxygen are elements and cannot be further broken down. But water can be broken down to obtain hydrogen and oxygen. Hence, water is a compound which consists of elements - hydrogen and oxygen.