Question

Man always been inquisitive about what lies in the ___________ of earth.

Answer 1

Answer:

Man has always been inquisitive about what lies in the interior of the earth.

Explanation:

• Our planet is made up of numerous concentric layers that are stacked on top of one another. There are three of these layers: the crust, mantle, and core.

• The crust is the top layer of the earth's crust. Of all the layers, it is the thinnest. On the continents, it is around 35 km, yet only 5 km below the ocean's surface.

• Silica and alumina make up the continental masses. So, it is also known as sial (si-silica and al-alumina). Silica and magnesium make up the majority of the marine crust. Consequently, it is known as sima (si-silica and ma-magnesium).

• Mantle: It is just below the crust. It reaches a maximum depth of 2900 kilometers below the crust.

• Core: It is the innermost layer or core. It's an approximate 3500-kilometer radius. It is referred to as nife and is primarily composed of nickel and iron (ni-nickel and fe-ferrous, Le, iron). The temperature and pressure inside the core are quite high.

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Answer 2

Answer: INTERIOR

Explanation:

• With the help of modern technologies like mining and drilling operations we have been able to observe the earth’s interior directly only up to a depth of few kilometers ( up to a limit) because of the rapid increase in temperature below the earth’s surface .

• Structure of earth’s interior is fundamentally divided into three layers i.e crust, mantle and core.

• Crust is the outermost solid part of the earth, normally about 8-40 kms thick. Major constituent elements found in the  crust are Silica (Si) and Aluminium (Al).

• Mantle is the portion of the interior beyond the crust and the major constituent elements of the mantle are Silicon and Magnesium.

• Core is the innermost layer surrounding the earth’s center  and is composed of iron (Fe) and nickel (Ni) .

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