Elliptical galaxies are a type of galaxy that have a spherical or ellipsoidal shape, and have no spiral-shaped structure. The vast majority of these galaxies have little gas, little dust and few young stars. More expressly, they look a lot like the nucleus and halo of spiral galaxies. Some are quite elongated and some very flat if viewed from Earth, however their shape is basically similar on each side.
About one third of the galaxies are elliptical in shape. Elliptical galaxies range in size from dwarf galaxies, often difficult to distinguish from globular clusters, to giant galaxies such as M70, a giant elliptical galaxy in the constellation Virgo.
Chemical energy, Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction, often in the form of heat.
I don't know but i think that the correct answer is that a long time ago the sea level was really high and mountains were under the sea and when the sea level got lower the mountains " got higher" and it took the fish with them
