THE EARTH
INTERNAL STRUCTURE OF EARTH
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Detailed explanation-1: -Continental crust covers 41percent of the Earth’s surface, though a quarter of that area is under the oceans.
Detailed explanation-2: -Approx. 41% of Earth’s surface area and about 70% of the volume of Earth’s crust are continental crust. Most continental crust is dry land above sea level.
Detailed explanation-3: -The earth is made up of three different layers: the crust, the mantle and the core. This is the outside layer of the earth and is made of solid rock, mostly basalt and granite. There are two types of crust; oceanic and continental. Oceanic crust is denser and thinner and mainly composed of basalt.
Detailed explanation-4: -The oldest oceanic crust is about 200 million years old. The average age of continental crust is about 2 billion years old.
Detailed explanation-5: -continental crust, the outermost layer of Earth’s lithosphere that makes up the planet’s continents and continental shelves and is formed near subduction zones at plate boundaries between continental and oceanic tectonic plates. The continental crust forms nearly all of Earth’s land surface.