Which of the following is one of Mars' two moons?

Which of the following is one of Mars' two moons?

• A. Phobos
• B. Deimos
• C. Europa
• D. Triton

Answer: (B)

Deimos is indeed one of Mars' two moons, alongside Phobos. These moons are small and irregularly shaped, suggesting they may have originated from the asteroid belt rather than being formed in orbit around Mars. Phobos is the larger and closer of the two moons, while Deimos is smaller and orbits at a greater distance. Together, they are unique in comparison to other celestial bodies in the solar system due to their unusual shapes and geological characteristics, which set them apart from larger, more spherical moons of other planets.

In contrast, Europa and Triton are not related to Mars; Europa is one of Jupiter's moons known for its icy surface and potential subsurface ocean, while Triton is a large moon of Neptune, recognized for its retrograde orbit and geological activity.