D. They all contain carbon as an important part of their structure.
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The answer is B Nitrogen atoms will form three covalent bonds (also called triple covalent) between two atoms of nitrogen because each nitrogen atom needs three electrons to fill its outermost shell. Another example of a nonpolar covalent bond is found in the methane (CH4) molecule.
3% icebergs, lakes, rivers, and ground water
Answer:
c
the cycling of water in and out of the atmosphere
