Question

Outer core
Inner core
1) Name the following:
a) The innermost layer of the Earth
b) The thinnest layer of the Earth
c) The layer of the Earth which is only one per cent of the total volume of Earth
d) The layer of the Earth which extends upto a depth of 2900 km
2) Complete the statements:
a) The uppermost layer of the Earth is known as
b) The highest mountain peak in the world is
c) The world's deepest mine is located in
d) The radius of the Earth is
e) The main mineral constituents of the continental mass are
f) Core is mainly made up of
km.
and
and
minerals.​

Answer 1

Answer:

1 core

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Answer 2

Answer:

Explanation:

Q1.

1.Earth's inner core is the innermost geologic layer of the Earth.

2.The crust is what you and I live on and is by far the thinnest of the layers of earth. The thickness varies depending on where you are on earth, with oceanic crust being 5-10 km and continental mountain ranges being up to 30-45 km thick.

3.Although the core and mantle are about equal in thickness, the core actually forms only 15 percent of the Earth's volume, whereas the mantle occupies 84 percent. The crust makes up the remaining 1 percent.

4.Earth's mantle is 2,900 km thick and is broken down into 3 main zones, the lithosphere, asthenosphere, and mesosphere. The lithosphere is a bit confusing since it makes up both the lower part of the crust and upper part of the mantle.

Q2.

1.lithosphere The upper layer of Earth, which includes its thin brittle crust and upper mantle.

2.Mount Everest, located in Nepal and Tibet, is usually said to be the highest mountain on Earth. Reaching 29,029 feet at its summit, Everest is indeed the highest point above global mean sea level—the average level for the ocean surface from which elevations are measured.

3.The Mponeng gold mine located in the Gauteng province of South Africa is the deepest operating mine in the world.

Production: 244,000 ounces (oz) of gold in 2019

Location: Gauteng Province, South Africa

Current Owner: AngloGold Ashanti

4.6,371 km

5.The main mineral constituents of the continental mass are silica and alumina. It is thus called sial (si-silica and al-alumina). The oceanic crust mainly consists of silica and magnesium; it is therefore called sima (si-silica and ma-magnesium)

6. It is the innermost layer. Its radius is about 3500km. It is mainly made up of nickel and iron and is known as nife(ni-nickel and fe-ferrous, Le, iron). The central core has very high temperature and pressure.

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