Earth's atmosphere is 78%<span> nitrogen </span>21%<span> oxygen, </span>0.9%<span> argon, and </span>0.03%<span> carbon dioxide with very small percentages of other elements.
hope it helps</span>
Electric Current. Here are some more words to meet the requirements.
Perception of pitch and sound intensity is the cocklear
Bluefish
Sawfish
Hellbender