Natural phenomena are non-artificial events in the view of physics, and then not created by humans, although they can affect humans (eg bacteria, aging, natural disasters). Common examples of natural phenomena include volcanic eruptions, weather, and decay.
Aurora is one of the natural phenomena
Most natural phenomena are harmless like rain. Natural phenomena such as volcanic eruptions, tsunamis and tornadoes are considered harmful and can cause death. Phenomena are remarkable things in life in the world and can happen unexpectedly and seem impossible in the human view.