Question

The uppermost layer of the Earth is called_______.
(A). Mantle
(B). Outer core
(C). Crust
(D). None of the above

Answer 1

Hint: The Earth is the planet of the solar system. The Earth was initially assumed as the spherical objects. But then after studies it was found the Earth is flatten toward the poles and bulging towards the equator.

Complete step-by-step answer:

The Earth has four different layers inside it. All layers have different physical properties. The four layers of Earth are
Crust: It is the outermost layer of the Earth. This is the layer in which you stand. All the structures that appear on Earth lie in this layer. The thickness of this layer is around 70 km. Silica, alumina, line, iron oxide and magnesium are found in this layer.
Mantle: The layer below the crust is Mantle. Thickness of this layer is more than that of crust. Mostly silicate rocks, rich magnesium and iron are found in this layer. This layer is in a molten state that is also known as magma.
Outer core: The layer below the mantle is known as outer core. The temperature in this layer is about 50000C. Nickel is founded in this layer.
Inner core: This is the central layer of Earth. It has a maximum temperature.
So, the correct option is C.

Note: The core is the innermost layer of the Earth. The inner core was surrounded by the outer core. The outer core is surrounded by the mantle. These are the layers of the Earth. The outermost layer of Earth is Crust.