Question

study the image of earths interior. which phrase explains what the arrows show?
∘ how convection currents move in earths interior
∘ the location of heated material near earths surface
∘ where plates move as material cools in the outer core
∘ why the densities of materials remain constant at different layers

Explanation:

1. Analyze Option 1: Convection currents in Earth's interior involve the movement of material (like in the mantle) due to heat—rising of hot material and sinking of cooler material, which matches the arrows' likely representation of such motion.
2. Analyze Option 2: Heated material near the surface would not show the internal circulation (arrows likely represent deeper, mantle - like motion), so this is incorrect.
3. Analyze Option 3: Plates move due to mantle convection, not cooling in the outer core (outer core is liquid, and plate movement is related to mantle), so this is wrong.
4. Analyze Option 4: Densities of materials change with depth (due to pressure, composition), so densities are not constant, making this option incorrect.

Answer:

A. how convection currents move in Earth's interior