<span>A. The nebula contracts and shrinks instead of expanding
</span><span>Nebula is the cloud of interstellar dust and gas that forms a star. It is collborately shaped during colliding and collapsing of the interstellar mediums this is influenced by the gravitational attraction of the atoms and particles in the entites. Hence, there are three types of nebular namely, are classical nebula, diffuse nebula, planetary nebular and supernova remnants.</span>
Electric Charge. options:
Radiation
Discovery
Kinetic Energy
<u>Electricity</u>
The answer to this is genetic diversity. Genetic Diversity is the total number of genetic makeup of a species. It distinguished from genetic variability, which describes the tendency of genetic characteristics to vary. <span />