Difference between biological aspect and physical aspect

A biological environment is a physical environment that has living things in it.

The only physical environments that I know of that are not biological environments are human-constructed sterile facilities, or planets/moons/asteroids/other celestial objects that can’t support life.

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds