universe & solar system section 4 MCQ Questions & Answers Detailed Explanation

Answer: (b)

White Dwarf is known as Fossil star. They are supported by electron degeneracy pressure. It amplifies the contrast with red giants.

They are both very hot and very small. They are the opposite of black holes. They are the end-products of small, low-mass stars.

Answer: (d)

The eclipse of the Sun occurs when the Moon comes between Sun and the Earth. The Moon orbits the Earth once a month, and eclipses happen if it lines up exactly with the Earth and the Sun. Solar eclipses occur at New Moon when the Moon is between Earth and the Sun.

Lunar eclipses occur at Full Moon when Earth is between the Sun and the Moon. Eclipses do not take place every month because the orbits of the Moon and Earth are tilted at an angle. Most of the time, the line-up is not precise enough for an eclipse.

Answer: (d)

Answer: (b)

The Indian sub-continent was originally part of a huge mass called Gondwana land.

In paleogeography, Gondwana, originally Gondwanaland, is the name given to the more southerly of two supercontinents that were part of the Pangaea supercontinent that existed from approximately 510 to 180 million years ago.

Answer: (a)

The Asteroid belt is found between Mars and Jupiter. The large majority of known asteroids orbit in the asteroid belt between the orbits of Mars and Jupiter, or are co-orbital with Jupiter.

Answer: (d)