Question

১.
পৃথিবীর অভ্যন্তরে বিযুক্তিরেখা থাকা
র কারণ কী?​

Answer 1

Answer:

The core is made of two layers: the outer core, which borders the mantle, and the inner core. The boundary separating these regions is called the Bullen discontinuity.

How did the interior of the Earth separate into layers? When the inside of the Earth was liquid, gravity caused the heavier elements nickel and iron to sink to the center. Lighter elements floated to the surface. Over time this process caused the Earth to separate into layers.

The Earth is divided into three main layers. The dense, hot inner core (yellow), the molten outer core (orange), the mantle (red), and the thin crust (brown), which supports all life in the known universe. Earth's interior is generally divided into three major layers: the crust, the mantle, and the core.

It is not possible to know about the earth's interior by direct observations because of the huge size and the changing nature of its interior composition. It is an almost impossible distance for the humans to reach till the centre of the earth (The earth's radius is 6,370 km).