Question

which statement best explains why earths outer core is in liquid form? the iron - nickel alloy melts due to hot temperatures. the outer core has a tarry consistency. this region is less dense when compared to the mantle. this region is under extreme pressure from the weight of other layers.

Explanation:

The Earth's outer - core is composed mainly of an iron - nickel alloy. High temperatures in the outer core cause this alloy to melt, resulting in a liquid state. A tarry consistency doesn't explain the liquid form. The outer core is denser than the mantle, and extreme pressure would tend to keep it solid rather than liquid.

Answer:

The iron - nickel alloy melts due to hot temperatures.