The most likely models of the planet Mercury indicate that more than half the planet may be composed of:
A) water
B) metals
C) ammonia and methane ice
D) very light and porous rocks
E) the element mercury

Question

Quizplus · Accepted Answer

Mercury is known to be a highly dense planet, and scientists believe that it has a large metallic core that makes up about 60% of its volume. This is based on observations of the planet's magnetic field and density. Other materials like rocks and silicates make up the remaining portion of the planet.

The Most Likely Models of the Planet Mercury Indicate That