Best General Knowledge MCQs on Our Solar System by Adspk

Best General Knowledge MCQs on Our Solar System by Adspk

Solar System

  • The solar system is the family of the sun, planets revolving around it, the satellites of the planets and the asteroids or meteoroids and comets etc.

    • There are eight planets in the solar system.

    • Starting from the sun there are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

    • All the planets revolve around the sun in their orbits.

    • Meteorite analysis shows that the age of solar system is about 4530 million years.

    • The sun is not the largest star of the Milky Way; rather it is an average sized star.

    • It is not at the centre of the galaxy but shifted towards a side.

    • The diameter of the sun is 1, 392, 140 km and its mass is 2 * 1027 tonnes.

    • The outermost layer of the sun is called photosphere, has an average temperature of 5570 0C.

    • The photosphere rotates at a rate of 25.38 days per turn.

    • At the centre of the sun hydrogen is undergoing nuclear fusion reaction which provides energy for the heat and light so sun.

    • The planets of the solar system as well as the moons get light and sometimes heat from the sun.

    • The four inner planets of the solar system are called terrestrial plants because of their rocky nature.

    • The outer planets are called gaseous planets because they don’t have solid surface and are composed of gases.

Best General Knowledge MCQs on Our Solar System by Adspk