Q. “The hypothesis/theory considered that the planets were formed out of a cloud of material associated with a youthful sun, which was slowly rotating” – is described about which of the following?
Answer: D
Notes:
One of the earlier and popular arguments was by German philosopher Immanuel Kant. Mathematician Laplace revised it in 1796. It is known as Nebular Hypothesis.
- The hypothesis considered that the planets were formed out of a cloud of material associated with a youthful sun, which was slowly rotating.
- Later in 1900, Chamberlain and Moulton considered that a wandering star approached the sun. As a result, a cigar-shaped extension of material was separated from the solar surface.
- As the passing star moved away, the material separated from the solar surface continued to revolve around the sun and it slowly condensed into planets.
Source: Fundamental of Physical Geography, Chapter – 2

