Answer:
Option (1)
Explanation:
The earth is comprised of 3 distinct layers, and they are as follows-
- Crust- It is the most interior layer of the earth, and is comprised of the denser materials and siderophile elements. The density of this layer is about 13 g/cm³.
- Mantle- It is the middle layer comprised of the silicate rocks that are rich in aluminum, iron, potassium, sodium, calcium, magnesium and other important elements. The average density of this layer is 5 g/cm³.
- Crust- It is the outer solid portion of the earth in which the rocks are mostly silicate in nature. It is comprised of both continental as well as oceanic crust. The density of this layer is approximately 2.5 g/cm³
.
Thus, the arrangement of these layers helps in understanding the relative densities of the layers.
Hence, the correct answer is option (1).
