Question

owen (rmo754) - web hmwk 1 - ea earth’s core is probably 1. composed of mostly iron and nickel. 2. hollow. 3. composed of rock with high silica content. 4. molten throughout. 5. composed of potassium and aluminium-rich silicates.

Explanation:

To determine the correct statement about Earth’s core, we analyze each option:

• Option 2: Earth’s core is not hollow; it has a solid inner core and liquid outer core. Eliminate.
• Option 3: Rock with high silica content is typical of the crust and mantle, not the core. Eliminate.
• Option 4: The inner core is solid, so it is not molten throughout. Eliminate.
• Option 5: Potassium and aluminum - rich silicates are not core components. Eliminate.
• Option 1: Scientific evidence (e.g., from seismic studies, analysis of meteorites) shows Earth’s core is mostly iron and nickel.

Answer:

1. composed of mostly iron and nickel.