GEOLOGY

EARTH SCIENCE

TECTONICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The ____ is a layer of solid rock that includes both dry land and the ocean floor.
A
Crust
B
Mantle
C
Core
D
Lithosphere
Explanation: 

Detailed explanation-1: -The crust is the outer layer where we live. It’s a solid rock layer that divides into continental crust and oceanic crust. The lithosphere is the outermost solid portion of the earth.

Detailed explanation-2: -the crust-is the layer of rock that forms Earth’s outer skin. The crust is a layer of solid rock that includes both dry land and the ocean floor. It is thinner than lower layers. Oceanic crust consists mostly of rocks such as basalt, dark rock with a fine texture.

Detailed explanation-3: -Oceanic Crust Oceanic crust, extending 5-10 kilometers (3-6 kilometers) beneath the ocean floor, is mostly composed of different types of basalts. Geologists often refer to the rocks of the oceanic crust as “sima.” Sima stands for silicate and magnesium, the most abundant minerals in oceanic crust.

Detailed explanation-4: -The lithosphere is the solid, outer part of Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure.

Detailed explanation-5: -The mantle is the mostly solid bulk of Earth’s interior. The mantle lies between Earth’s dense, super-heated core and its thin outer layer, the crust. The mantle is about 2, 900 kilometers (1, 802 miles) thick, and makes up a whopping 84 percent of Earth’s total volume.

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