C. Which layer is the thickest?
This question would help identify the mantle because the mantle is the thickest layer of Earth, measuring 2,891 km in thickness, compared to the other layers.
Earth is composed of layers, which include the crust, mantle, inner core, and outer core. Each layer has different properties and is composed of different materials. The table shows characteristics of Earth's layers.
Layer Temperature Density Thickness Composition
Crust 200°C – 400°C 2.2 – 2.9 g/cm3 30 km Solid silicate minerals
Mantle 1,000°C – 3,700° C 3.4 – 5.6 g/cm3 2,891 km Molten silicate minerals
Outer core 4,500°C – 5,500°C 9.9 – 12.2 g/cm3 2,259 km Liquid iron and nickel
Inner core 6,000°C 12.8 – 13.1 g/cm3 1,221 km Solid iron and nickel Which question would help identify the mantle?
A.
Which layer is liquid?
B.
Which layer is the hottest?
C.
Which layer is the thickest?
D.
Which layer is the most dense
1 answer