Question

how are oxygen made of​

Answer 1

Answer:

Oxygen can be produced from a number of materials, using several different methods. The most common natural method is photo-synthesis, in which plants use sunlight convert carbon dioxide in the air into oxygen. This offsets the respiration process, in which animals convert oxygen in the air back into carbon dioxide.

Answer 2

$\huge\pink{Añswer:-}$

↪Under standard conditions, oxygen forms a gas that is composed of molecules consisting two oxygen atoms (O2). This is termed as a diatomic gas. It also exists in its allotropic form, i.e., O3 (Ozone).

___________________________

$<marquee>❤Hope it helps❤$