The first three steps in the formation of the sun are listed below. a cloud of gas and dust called nebula spins slowly. the nebula collapses due to condensation of gases. the cloud spins faster as it collapses. which of these statements best describes the next step in the formation of the sun? the contracting nebula flattens into a disk with a bulge at the center. the gas particles in the nebula repel each other and move apart. the nuclear fission of the gas molecules releases large amount of energy. the sun is created at the outermost portion of the condensed nebula.

The contracting nebula flattens into a disk with a bulge at the center.

Explanation:

Sun was formed in solar nebula about 4.5 billion years ago. Solar nebula is a molecular cloud of dust and gases which slowly spun and collapsed due to condensation of gases.  The cloud started spinning faster and collapsed. Thereafter, the contracted nebula flattened into a disk and bulge at the center was formed. The temperature and pressure rose till the nuclear fusion reaction started releasing huge amount of energy. The sun was born. The rest of the matter accreted to form planets.

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