Answer:
HE IMPROVED THE WORLD BY GIVING SOMTHING THAT IT DID NOT HAVVE
Explanation:
ENJOY :)
Gonads are sex organs that produce gametes. Male gonads are the testes, which produce sperm and male sex hormones. Female gonads are the ovaries, which produce eggs (ova) and female sex hormones.
The two gasses that make up 99% of the earth's atmosphere are nitrogen and oxygen.
Hope that helped! =)
I would guess C, hope that helps!