Question

The structural layers of Earth (lithosphere, asthenosphere, etc.) are determined by which of the following?

Question

A. What they look like


B. What they sound like


C. Their physical properties


D. When they were discovered

Answer 1

C. Their physical properties

Step-by-step explanation:

layers:

(inside the earth)

Inner Core solid iron nickel hot 5,200°C.

Outer Core liquid layer iron nickel hot 5,000°C.

D''' Layer 2 layers, inside mantle, weird seismic waves.

Lower Mantle silicon, oxygen, magnesium iron 3700°C.

Upper Mantle silicon, oxygen, magnesium, and iron 2,200°C.

Mohorovičić Discontinuity (Moho) crust & mantle meet, and it has a sudden change in how seismic waves travel due to the difference in the density and composition of the crust and the mantle.

Crust outside layer thinnest &coolest lighter elements oxygen, silicon, and aluminum 400°C.

(outside the earth)