Question

identify the two modes that most of earths elevations cluster around. then classify those elevations as oceanic crust or continental crust.

Explanation:

The two modes of Earth's elevations are around -4 km (oceanic crust) and +1 km (continental crust). Oceanic crust is denser and thinner, so it sits lower. Continental crust is less dense and thicker, so it sits higher.

Answer:

The two modes are around -4 km (oceanic crust) and +1 km (continental crust).