SOLAR SYSTEM

Detailed explanation-1: -Mars is known as the red planet. It appears slightly reddish colour because of the presence of iron oxide on the surface.

Detailed explanation-2: -The characteristic red colour of Mars is due to the iron oxide commonly known as rust.

Detailed explanation-3: -Mars is the planet which appears reddish in colour in the solar system.

Detailed explanation-4: -The reason Mars looks reddish is due to oxidization – or rusting – of iron in the rocks, regolith (Martian “soil”), and dust of Mars. This dust gets kicked up into the atmosphere and from a distance makes the planet appear mostly red.

Detailed explanation-5: -Mercury is a rocky planet with a huge iron core which makes up a large part of its interior. The core takes up nearly 3/4 of the planet’s diameter. Mercury’s iron core is about the size of the moon. Iron makes up about 70% of Mercury’s total weight making Mercury the most iron-rich planet in the Solar System.