What Major factors determines the Stage that a star completes in its cycle

The major factor that determines the stage that a star completes in its cycle is done by its mass.

Explanation:

The life cycle of star is determined by its mass. The mass of the star is calculated by the amount of matter that is present in the nebula.

At first star begins is life as a cloud of dust and gas known as nebula. A protostar is formed while the gravity caused the dust and gas of a nebula to combine together in a process called accretion. If the protostar reaches the critical temperature then nuclear fusion begins and star is born.

The stars die because they exhaust their nuclear fuel. If there is no fuel left, the star collapses and the outer layer explode as a 'supernova'.

There are seven stages of a star they are A giant gas cloud, A protostar is a baby star, T-Tauri phase, main sequence stars, Expansion into red giant , Fusion of heavier elements and supernovae and planetary nebulae.

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.