The answer is B NaCI solid
Heat is energy, and that energy would eventually cause the object to undergo a phase change.
I choose the option A.
The electron absorbs energy from specific wavelength then moving from a lower energy orbital to a higher energy orbital.
My guess would be "B) they were produced by volcanoes" because hawaii has a bunch of volcanoes and volcanoes can produce extra land. While the other answers wouldn't make sense. Definitely B.
B. A gram would have a lot more molecules of propane than a mole
