I believe the answer is d.
Ik that this isn't a answer but what subject is this, it will help
Answer:
(you have to copy and paste into the browser and I had to space out so brainly would let me post I hope you do well on the assignment)
Explanation:
h t t p s : / / w w w . y o u t u b e . c o m / w a t c h ? v = d Q w 4 w 9 W g X c Q
The least abundant gas in out atmosphere is Carbon dioxide at 0.03%.
