Question

Astronomers have seen stars forming within a nebular cloud. As the nebular cloud condenses and its own gravitational attraction collapses it, heat and energy build up creating _____. nuclear fusion a planet nuclear differentiation dust and gas

Answer 1

Astronomers have seen stars forming within a nebular cloud. As the nebular cloud condenses and its own gravitational attraction collapses it, heat and energy build up creating a planet. It may be small planet depending on the size of the nebular cloud.

Answer 2

As the nebular cloud condenses and its own gravitational attraction collapses it, heat and energy build up creating "nuclear fusion".

Nuclear fusion, process by which nuclear reactions between light components form heavier components. In situations where the interfacing cores have a place with components with low nuclear numbers (e.g., hydrogen or its isotopes deuterium and tritium), considerable measures of energy are discharged.