In the film Iain Stewart goes to several places of importance because of "fire" or heat on Earth. Describe where you thought the most interesting place on Earth Professor Iain Stewart went to in the film.

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.