Question 51 From the diagram, what is the layer that represents the letter "F"? Structure of the Earth (Layers classified by chemical properties) (Layers classified by physical properties) gas mostly water rigid rigid "Plastic A 300 miles (480 km) -B -14000 feet (4267 m) -80 mi (100 km) -430 ml (700 km) variable thickness - 21 mi (36 km) consists mostly of granitic and matic silicates rigid E cosists of mostly ultramatic silicates 1800 m (2086 km) liquid F H consists of mostly iron, nickel, and sulfur 3200 ml (5165 km) rigid G 3.960 m (6,371 km) Mantle Transition zone Outer core MacBook Air