Describe the protoplanets nebular model of the origin of the solar system.?
Question:
Answer:
At first there was a solar nebula, as material started to gravitate to the center, the whole nebula thing started to spin around the center. Some of the particles started to orbit, creating Planetesimals. The center compress until it ignited and became a star. The planetesimals cooled and became planets and asteroids.
The evidence to support this model include the fact all of the planets orbit in the same direction. And the fact we can see solar nebula at different levels of development through out the galaxy.
The solar system began some 10 billions of years ago.
The debris from an exploding massive star crashed into a hydrogen field.
The resulting mix of rocky material and the hydrogen evolved into the solar system that we see to-day.
The whole scenario seems credible to me.
It may be difficult to model it's exact sequence but I think the overall evolution seems pretty close to what you would expect.
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