It’s either a or b for sure
Answer:
Neon and Methane
Explanation:
Nitrogen and Oxygen made up way over half of the atmosphere so it's without a doubt, not those two. Precisely, Nitrogen makes up 78% of the atmosphere while oxygen makes up 21%
0%. If you set up a punnet square, you are crossing ff x ff. There aren't any dominant alleles to mask the recessive ones so all of the children will not have freckles.
Density =mass /volume
Volume =1800÷0.79
= 2278.481ml