Answer:
i think that it is an atmosphere.
Explanation:
Answer:
Noble Gases are very stable because...
1) Noble Gases have a full octet
2) Low chemical reactivity
Explanation:
This means that is has 8 valence electrons so it won't need any more, so it is less likely to react with other substances.

The reaction creates dihydrogen, hence if it's uncontrolled it could lead to potentially dangerous amounts of gas being released at once.
they pair up with other bases to make up the rungs of the DNA ladder
Answer:
I think it is AM and frequency
Explanation:
Sorry if i'm wrong ;)