Which property primarily determines whether a giant star or a supergiant star will form?
(1) mass (3) shape
(2) color (4) composition

Mass (1) primarily determines whether a giant star or supergiant star will form. Stars form in areas of high density in the interstellar region. These regions are known as molecular clouds and consist mainly of hydrogen. Helium, as well as other elements, are also found in this region. Giant and supergiant stars, as well as other stars, are formed by fusing hydrogen into helium in the central core of the star. The weights of the different stars have different properties at the different stages of their development. 

Aregion is an area of land that has common features. these features can be natural, such as climate or landscape. they can also be artificial, such as language or religion. the xinjiang uyghur autonomous region, above, is an area of china inhabited by uyghurs, a muslim group with ethnic ties to turkish people.

This would be an open primary. a closed primary people can vote only prior to election day if the party if they are registered. independent voters can not participate. there is not a wide-open primary, but there is a semi-open primary.