A. An element is the answer
Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds.
Answer:
Because DNA is like a code for an organism such as sheep or humans the code of gene segments such as C G A T all collaborate and make a strand of DNA so it all depends on the letters our parents traits and the enviroment.
Explanation:
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