GENERAL KNOWLEDGE

Detailed explanation-1: -Also iron oxide is found on the surface of mars. Mars contains Iron oxide on its surface which gives a reddish appearance. And this is visible to the naked eye. So a mars is known as a red planet as its color looks like red due to iron oxide.

Detailed explanation-2: -Wind eroded these surface rocks and soil, and ancient volcanos blew out the iron, spreading it all over the planet. When this happened, the iron within the dust reacted with oxygen, producing a red rust color. So, Mars is red because it has a layer of rusty dust covering its entire surface!

Detailed explanation-3: -The characteristic red colour of Mars is due to the iron oxide commonly known as rust.

Detailed explanation-4: -Well, a lot of rocks on Mars are full of iron, and when they’re exposed to the great outdoors, they ‘oxidize’ and turn reddish-the same way an old bike left out in the yard gets all rusty. When rusty dust from those rocks gets kicked up in the atmosphere, it makes the martian sky look pink.