According to the nebular hypothesis, our solar system formed from a huge rotating cloud made mostly of

a. carbon and hydrogen.

b. helium and hydrogen.

c. oxygen and helium.

d. nitrogen and oxygen.

According to the nebular hypothesis, our solar system formed from a huge rotating cloud made mostly of B) helium and hydrogen.

Correct Answer: option B: helium and hydrogen

Reason:

The nebular hypothesis is the most widely accepted theory that explains the formation and evolution of the Solar System. It was proposed by I. Kant. According to this theory, Solar System formed from nebulous material. Further, according to the nebular hypothesis, stars form the massive and dense clouds of molecular hydrogen.