Oxygen was the important element missing in Earth's early atmosphere. It was only produced later by photosynthetic organisms.
Oxygen is the most abundant element in Earth's lithosphere, comprising about 45% of its mass.
Nitrogen makes up 78% of the Earth's atmosphere.
Oxygen is the most abundant element in the Earth's crust, making up about 46.6% of its mass.
The element carbon is not found in large quantities in Earths mantle.
The fifth most abundant element in the Earth's crust is potassium. It makes up about 2.6% of the Earth's crust by weight.
78%nitrogen ,21%oxygen and 1%other
That element is Oxygen by 46.6%
1. there are five layers of the atmosphere 2. it is composed of the gas nitrogen (N) and oxygen (O) mainly 3. nitrogen (N) occupies 78% of the atmosphere 4. oxugen (O) occupies 21% of the atmosohere
The element "Oxygen".
Methane gas
Methane gas
oxygen
Mg-Y-ca
that sounds unanswerable.
Aluminum :D
Nitrogen does
iron