D)they were formed veritcally
<span>Changing atmospheric conditions, like increasing carbon dioxide content, might possibly increase the risk of global warming. Carbon dioxide, along with other greenhouse gases, is one of the leading causes of our Earth's rise in temperature. This is because greenhouse gases trap the planet's heat inside its atmosphere, preventing it from leaving the Earth's surface. </span>
They are two representatives of the sublevels/energy levels.
Answer:
C. Methane
Explanation:
Hopefully this isnt too late!
