Earth's crust is mostly made out of about 46% oxygen, 28% silicon, 8% aluminum, 5% iron, 4% calcium, 3% sodium, 2% magnesium and about 1.6% other elements. Very commonly found as silicates.
The basic materials of the earths crust are; silicate rocks, primary granite, igneous, metamorphic, and sedimentary rocks.
The basic substances of Earth's covering are primarily comprised of rock-forming minerals such as quartz, feldspar, and mica. Additionally, organic materials like soil, sand, and clay contribute to the composition of the Earth's surface. These substances interact with water, air, and living organisms to form a dynamic layer known as the Earth's crust.
it is made of rocks
vent a+
A vent in the Earth's crust from which lava and other materials are ejected is called a volcano.
There three basic part of earth are The crust The mantle The core
vent a+
It is rock.
The Rock Cycle ^_^
There are almost no extrusive rocks on the earths surface because they are all under the earths surface. They are mainly lower than the earths surface.
what can form deep insides earths crust by crystallisation of melted materials
A volcano is a vent (opening) in the earths crust through which molten materials erupts suddenly.