Question

What is the radius of the core?

Answer 1

Hint:The Earth constitutes 3 layers- Core, Mantle, and Crust. The core forms the center part of the Earth which is extremely hot and dense. It is the middle part of our planet. The core is divided into 2 parts- the outer core part is liquid in nature while the inner core part is solid in nature.

Complete answer:
During the creation of the Earth nearly 4.6 billion years old, it was a hot ball of metal and molten rock. The velocity of the earthquake waves helps us to comprehend the presence of the core of the earth.

The inner core of the earth is 2,500 km wide, primarily composed of iron, the temperature ranges from 5000 Celsius -6000 Celsius. The solid inner core is a result of the extreme pressures around it.

The outer core is liquid in nature. The temperature varies from 4000 Celsius to 6000 Celsius. The liquid layer consists of metals, like iron, nickel, gold, platinum, and others, like sulfur and oxygen. This liquid core flows around the center of the earth and this motion is responsible for creating the earth’s magnetic field.

Thus, the radius of the core is approximately 3500 km. It comprises heavy materials like nickel and iron which is why it is often called the nife layer.

Note:The core forms around 83% of the total volume of the earth. The central area of the core is extremely hot and has extremely high pressures. Sometimes the core of the Earth is also known as the barysphere. The measurements of the core remain an approximate value as nobody can physically go and measure it.