Question

The axis of Mercury, Venus and Jupiter are _____________.
A. Vertical
B. Horizontal
C. Tilted
D. None of these

Answer 1

Hint: The solar system is believed to have formed from one nebula, the solar nebula. The solar system is the name given to the planetary arrangement of which the Earth is a part of. It comprises planets, moons, comets, meteors and asteroids which are all held together by the gravitational pull of the Sun or Sol.

Complete answer: Mercury’s closeness to the sun means that it is best observed during the hours of dawn and dusk because during such twilight hours it is not overpowered by the luminosity of the sun. As the closest planet to the sun, it completes one orbit in a mere 88 days, at the breakneck speed of 47 kilometres per second, making it the fastest planet in the solar system. Mercury rotates on its axis and finishes one revolution each 59 Earth days. Mercury's axis is tilted only 2 degrees concerning the plane of its orbit around the Sun.
Venus is often referred to as Earth’s planet, not only because they are one another’s nearest neighbours in the solar system, but also because they are very similar in size. The Venus rotates on its axis from east to west with an axial inclination of just 3 degrees and 243 Earth days to rotate on its axis. Just like Venus, Jupiter also has an axial inclination of 3 degrees.

Thus, the correct answer is Option C.

Note: The axis of these three planets - Mercury, Venus and Jupiter implies that it turns almost totally upright thus these planets do not encounter seasons as numerous different planets do. Jupiter out of all the three planets is a gas giant which can fit nearly 1000 Earth inside it.