Melanin, why ? Because melanin acts as a protective biological shield against ultraviolet radiation.
I think you mean earth's protective shield. The ozone gas forms it.
The earth's protective shield is formed by one of the molecules of the oxygen. It is ozone.
Aegis
Ozone acted as a miracle shield. It is a protective layer.
If you're talking about Bella's she controls it, and she can make it surround the people she wants. Like that, she protects the people she wants.
The gas which help in forming the earth's protective shield is ozone gas. It is present in the atmosphere as the ozone layer in the stratospheric regionof atmosphere.
That question is also asked in our take home test at biology. :) Melanin, why ? Because melanin acts as a protective biological shield against ultraviolet radiation.
Stratospheric ozone
Goggles (face shield)GlovesLab coat/protective gown.Optional: shoe covers
The role of personal protective equipment is to shield the user from a hazardous agent or hazardous energy in the user's environment.
King Arthur's shield is commonly known as Pridwen. It was a large, round shield said to have been endowed with protective powers.