Question

How are oxygen and ozone alike?

Answer 1

Oxygen and Ozone are made of molecules of the element Oxygen.

Explanation:

Atmospheric Oxygen is normally a diatomic molecule `O_2`
This molecule is very stable and is not affected by ultraviolet radiation and other forms of cosmic radiation. Diatomic Oxygen is important to live. Cellular Respiration cannot happen without Oxygen molecules of `O_2`

Atmospheric Ozone is a triatomic molecules `O_3` This molecule is volatile and absorbs ultraviolet radiation and other forms of cosmic radiation. By absorbing these harmful radiations, Ozone protects living things living on the surface of the earth. Ozone is toxic to life if it is breathed in by an organism. The unstable Ozone will oxidise organic molecules.

Both Oxygen and Ozone are molecules made of the element Oxygen. Both are important to living things, but in different ways.
Oxygen is used directly by living things. Ozone protects living things by absorbing harmful radiation in the atmosphere.