About three-fourths of the surface of which planet is covered by iron oxide dust?

Mars is known for its reddish appearance, which is primarily due to the presence of iron oxide, commonly referred to as rust, on its surface. This iron oxide dust gives Mars its nickname, "The Red Planet." The planet's surface is composed of approximately 75% iron oxide, contributing to its distinctive coloration that can be seen from Earth. The presence of this composition is significant for understanding Mars' geology and atmosphere, as it provides insights into the planet's past and potential for supporting life. Each of the other planets listed has different surface compositions and characteristics that do not include such a predominance of iron oxide dust, which is unique to Mars.