Question

what is the earths innermost layer primarily composed of? metal water solid rock

Explanation:

The Earth's innermost layer is the inner core. Scientific evidence shows that it is mainly composed of iron - nickel metal alloy. Water is not a major component of the inner core as it would be in liquid form and unable to sustain the high - pressure environment of the inner core. Solid rock is more characteristic of the Earth's crust and mantle rather than the inner core.

Answer:

metal