universe & solar system section 5 MCQ Questions & Answers Detailed Explanation

Answer: (a)

The Earth is closest to the Sun or at its Perihelion- about two weeks after the December solstice, i.e. 3 January and farthest from the Sun or at its Aphelion, about two weeks after the June solstice, i.e., 4 July.

Answer: (a)

The galaxy has within it many clouds of gas and dust – often associated with a nebula created from a supernova explosion.

These clouds are mostly made of the elements hydrogen and helium, as these are the most common elements in the universe.

Answer: (d)

Venus has the highest albedo of any planet in our solar system. Venus is so bright partly because it reflects over 70 percent of the sunlight striking it.

It owes its reflective ability to the fact that it’s blanketed with clouds. Sunlight bouncing from these clouds is what makes Venus so bright.

Answer: (c)

The planet which is called twin sister of earth is Venus. Venus is known as the Earth’s twin because of its similar size, chemical composition and density.

However, due to its toxic atmosphere, Venus is not habitable.

Answer: (a)

The diameter of

• Jupiter is 1,42,984 km,
• Saturn: 1,20,536 km,
• Uranus: 51,118 km, and
• that of Neptune is 49,528 km.

Answer: (a)

Our solar system is located in Milky Way Galaxy. The Milky Way is the galaxy that contains our Solar System. Its name “milky” is derived from its appearance as a dim glowing band arching across the night sky in which the naked eye cannot distinguish individual stars.