carbon, hydrogen<span>, </span>oxygen<span>, </span><span>nitrogen</span>
Infected cells create and release small proteins known as interferons, which help the immune system fight viruses. Interferons stop viruses from replicating by interfering with their ability to multiply within infected cells.
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite. It is the fifth-largest natural satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits (its primary).
Well they can begin as cosmic rays colliding with water molecules to create clouds. Hope this helps :)
