universe & solar system section 7 MCQ Questions & Answers Detailed Explanation

Answer: (d)

A region of the globe found over the oceans near the equator in the intertropical convergence zone and having weather characterized variously by calm air, light winds, or squalls and thunderstorms is called Doldrums.

Answer: (a)

Methane is present in the atmosphere of Jupiter. The atmosphere of Jupiter is the largest planetary atmosphere in the Solar System.

It is mostly made of molecular hydrogen and helium in roughly solar proportions; other chemical compounds are present only in small amounts and include methane, ammonia, hydrogen sulphide, and water.

Answer: (b)

The black color on the sun is because the planet behaved as a black hole during its transit. A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and Earth (or another planet), becoming visible against (and hence obscuring a small portion of) the solar disk.

During a transit, Venus can be seen from Earth as a small black disk moving across the face of the Sun. The duration of such transits is usually measured in hours (the transit of 2012 lasted 6 hours and 40 minutes).

Answer: (c)

• Pleistocene - Human genus
• Paleocene - Frogs
• Permian - Mammals
• Cambrian – Invertebrates

Answer: (d)

Answer: (d)