Question

A student named the various layers of earth as shown in the figure wrongly. What is the
 correct sequence starting from the uppermost layer.
A) 1. crust 2. outer core 3. mantle 4. inner core
B) 1. outer core 2. Crust 3. mantle 4. inner core
C) 1. crust 2. Mantle 3. outer core 4. inner core
D) 1. outer core 2. Mantle 3. crust 4. inner core

Answer 1

Hint: The crust, mantle, outer core, and inner core are the four basic components that make up the earth's structure. Each layer has its own chemical composition and physical state, and it has the potential to affect life on the planet's surface. The plates shift as a result of movement in the mantle induced by fluctuations in heat from the core, which can result in earthquakes and volcanic eruptions.

Complete answer:
Earth is divided into four layers. The majority of geologists believe that when the Earth cooled, the heavier and denser material sank to the centre, while the lighter material rose to the top. As a result, the lightest materials, such as rocks and granites, make up the outermost layer, while nickel and iron make up the innermost layer.

There are four layers to the Earth. The following are the details:
1. The 'crust' refers to the planet's outermost layers.
2. The 'mantle,' which lies underneath the crust, is a dense layer.
3. The outer core is the third layer.
4. The inner core is the fourth layer.

Thus, the correct answer is Option C) 1. crust 2. Mantle 3. outer core 4. inner core.

Note: The crust has been examined and understood the most. It is in this layer that we live. The mantle is hotter and has the ability to flow. If you can go to the centre of the Earth, you can be crushed into a ball smaller than a marble because the outside and inner cores are much hotter with high pressures.