Question

What is the major difference between the crust and the mantle?

a) Strength
b) Composition
c) Temperature
d) Viscosity

Answer 1

The major difference between the crust and the mantle is their composition. option b is answer

Step-by-step explanation:

The major difference between the crust and the mantle is their composition.

The crust, which is Earth's outer surface, is predominately silicon oxide and aluminum oxide. It varies in thickness from less than 5 km to more than 70 km. There are two types of crust: continental crust, which is thicker and less dense, and oceanic crust.

The mantle, on the other hand, is the largest part of the solid Earth, stretching from the base of the crust to a depth of 2900 kilometers. It is more or less solid and consists of mantle rock, which can deform and flow slowly under the temperatures and pressures found there. . option b is answer

Answer 2

Final answer: The major difference between the crust and the mantle is (b) Composition.

Therefore, correct answer is (b) Composition.

Step-by-step explanation:

The Earth's structure consists of distinct layers, with the crust and mantle being two primary components. The major difference lies in their composition. The crust is primarily composed of lighter elements, including silicon and aluminum, while the mantle is composed of denser materials such as iron and magnesium silicates. This compositional contrast contributes to variations in physical properties and behaviors between these layers.

The composition of the crust and mantle influences their respective strengths, temperatures, and viscosities. The crust is comparatively thinner, cooler, and more rigid, while the mantle is thicker, hotter, and exhibits greater plasticity. These differences in composition and physical properties play a crucial role in shaping the dynamic processes occurring within the Earth's interior, such as plate tectonics and mantle convection.

Therefore, correct answer is (b) Composition.