Nitrogen
Carbon dioxide (CO2) and methane (CH4) are two forms of carbon found in the atmosphere.
In the Earth's atmosphere
Nitrogen is commonly found in a atmosphere. And whateverr that chick next to me said.
Oxygen is most commonly found in the air of Earths atmosphere.
Oxygen is commonly found in a gaseous state in our atmosphere.
Biosphere life-forms are only found in the hydrosphere and atmosphere.
In the Earth's atmosphere.
Metals are more common than nonmetals. The majority of elements on the periodic table are metals, and they are found in various forms in nature. Nonmetals are less abundant and typically found in combination with other elements in compounds.
D-forms
Some non metals are highly abundent. A good example is nitrogen and oxygen which contributes nearly 98% of our air. Helium how ever is an example naturally produced but is only found as traces (400ppm) as it is too light to stay in our atmosphere. One other thing to think of is all elements on the periodic table are found naturally except for some in the lanthanides and actinides
Metalloids do not contain either metals or nonmetals. They are elements that have properties of both metals and metalloids, and are found between the metals and nonmetals on the periodic table.
Helium is most commonly found in the Earth's crust, often in natural gas deposits. It can also be found in the atmosphere in small amounts. Helium is not typically found in significant quantities in the oceans.