GEOLOGY

Detailed explanation-1: -The inner core is in the solid-state whereas the outer core is in the liquid state. This is because although the temperature is very high inside the inner core, the pressure is also very high, making it solid. Statement 2 is correct. Silicon has the second-largest composition in the earth’s crust.

Detailed explanation-2: -Scientists figured out that the outer core must be liquid because S waves do not pass through it, but P waves do. The behavior of P and S waves also indicates that the inner core is solid. The speed of seismic waves also depends on the density of the material through which they are traveling.

Detailed explanation-3: -Which of the following statements best describes Earth’s inner core and Earth’s outer core? The convection of liquid metals in the inner core creates a magnetic field at the outer core. . The liquid outer core of the Earth lies above the Earth’s solid inner core and below its mantle.

Detailed explanation-4: -Which statement BEST describes the Earth’s core? The core is the densest layer which is solid iron and nickel.

Detailed explanation-5: -Which statement correctly describes the outer core? Composed primarily of magnesium, oxygen, aluminum, and silicon, the outer core is a dense, solid layer, and is responsible for the motion of Earth’s plates.