What process causes all stars to glow and produce energy

Explanation:stars shine Because they are extremely hot (like fire gives off light because it is hot) .

The source of this energy is present deep inside the star where the nuclear reactions are taking place.

In most of the stars the hydrogen is being converted into helium ,a process which gives off energy that heats the star

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs