Which reason best explains why carbon is able to form marcromolecules

The atom of carbon is able to form macromolecules because it has only four electrons in its outer shell. This is the reason why it can bond with four other carbon atoms. The bonds that it forms with other carbon molecules are very stable.

Explanation: I did my research and i also took Science class. :)

Hope this Helps :).

c. heat from the poles back down towards the equator.