It contains 4 key elements carbon, hydrogen, oxygen and Nitrogen. so your answer is nitrogen
Answer: I think the answer is true
Explanation: If you think about it, the terrestial planets ( being venus, earth, mars, and mercury) are made up very little gas which are carbon dioxide, nitrogen and oxygen, and the gas giants ( being jupiter, saturn, neptune, and uranus) have gases such as hydrogen and helium. Thus meaning, the terrestial planets could be a part of it and the gas giants are the most. So yes, the answer is true.
Answer:
The codon length would not change.
Explanation:
Codons have 3 bases and normally the DNA has 4, each codon counts for a single amino acid. There are 64 possible codon variations which can be calculated by 
.
If there were 6 bases in the DNA than there would be 
codon variation that correspond to the same 20 amino acids but the codon lengths would still be the same.
I hope this answer helps.
