BEGININPUT
BEGINCONTEXT
url: https://scied.ucar.edu/shortcontent/mixture-gases
ENDCONTEXT
The Earth's atmosphere consists of roughly 78% nitrogen, 21% oxygen, and trace amounts of other gases like argon and carbon dioxide. This composition allows for life to thrive on our planet. 

ENDINPUT
BEGININSTRUCTION
What is the composition of the Earth's atmosphere?
Source?
ENDINSTRUCTION
The composition of the Earth's atmosphere is roughly 78% nitrogen, 21% oxygen, and trace amounts of other gases like argon and carbon dioxide.
Reference(s):
url: https://scied.ucar.edu/shortcontent/mixture-gases