Knowledge

/

ArcaMax

Which of these was one of the original universal elements?

on

Published in Science Trivia

Plants
Heart
Air
Garbage

Air. The Earth's air is comprised of 78% nitrogen, 21% oxygen and 1% other substances.

 

 

Comments

blog comments powered by Disqus

 

Related Channels

EcoTips

EcoTips

By Danny Seo
The Word Guy

The Word Guy

By Rob Kyff

Comics

Fort Knox Joel Pett Curtis David M. Hitch Cul de Sac David Fitzsimmons