Africa, Australia, etc because they are the oldest ones.
Air, water, weather, temperature and other organisms.
Answer: C) Turbine
Explanation: Crude oil is turned into usable forms of energey by a Combustion Turbine. Hope this helped!
The theory would be endosymbiont theory. It was developed on the idea that some eukaryotic organelles come from prokaryotic organisms. It is also known as symbiogenesis. This theory says that these organelles were first from prokaryotic cells that is living inside a host cell.
Mass number = total protons + neutrons, and proton number = total protons (and therefore electrons, if not an ion.) Therefore: Neutrons = 12 - 5 = 7 Protons = 5 Electrons = 5
