Question

Why was it difficult to understand the formation of earth and its structure

Answer 1

The Earth has a layered structure made up of the core, mantle and crust. The crust and upper part of the mantle is broken into large pieces called tectonic plates. These move slowly over the mantle.

Volcanoes occur when molten rock pushes up through weaknesses in the crust. The molten rock cools and solidifies to form igneous rocks.

Answer 2

It is so difficult to determine Earth’s inner structure because we cannot actually view the interior of
the Earth. Due to the intense heat and pressure, technology has not been able to penetrate past 12
km into the Earth. As a result, we must use seismic waves and other indirect methods to get an idea of
what Earth’s interior is really like.