Explanation:

- Ozone is a molecule made up of three oxygen atoms. It is indeed an allotrope of oxygen.

- Oxygen:

- Ozone (O3) is a form of oxygen, where three atoms are bonded together.

- Oxygen commonly exists as O2, but O3 is another natural form.

- Ozone plays a crucial role in blocking harmful UV radiation from the sun.

- Carbon Dioxide:

- A compound consisting of carbon and oxygen (CO2).

- Not related to ozone; not an allotrope.

- Hydrogen:

- The simplest and most abundant element in the universe.

- Ozone is not an allotrope of hydrogen.

- Nitrogen:

- A major component of Earth's atmosphere.

- Ozone does not contain nitrogen, so not an allotrope.