The most abundant compound that can be found in the sea apart from water is the sodium chloride (NaCl). This is why we are able to retrieve table salt, which also comes in the same formula, from the sea. When sodium chloride dissociates into its ions, the two ions would be Na+ and Cl- which are called sodium ion and chloride.
D. Malleability because he is most likely going to show how you can easily roll pizza dough, and that can show malleability, which means ability to be flexible, rolled, stretched, etc.
Mitosis is the process of multiplying, (replication) of chromosomes. So when this happens, one cell will split into two of the exact same identical cells.