Thinnest layer of the earth is
Thinnest layer of the earth is Crust. It is about 35km km on continental masses & 5km on ocean floors. Mantle extends upto 2900km. Core is innermost layer with radius of 3500km and is made up nicke (ni) & iron(fe).
______ minerals are found in the continental masses
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).
The main mineral constituents of the continental mass are
The earth is made up of several concentric layers with one inside another. The uppermost layer over the earth’s surface. It is the thinnest of all the layers. It is about 35 km. on the continental masses and only 5 km. on the ocean floors. The main mineral constituents of the continental mass are silica and alumina. It is thus called si-al (si-silica and al-alumina)
The innermost layer of the earth is
The innermost layer of the earth is known as the core. It is divided into inner core and outer core. It comprises of a high concentration of nickel and iron. It is believed to be the source of the earths magnetism.
Sandstone is made from
Sandstone is a very common rock. It is made of sand grains cemented together. The grains were once part of a beach or a desert.
Which are the main minerals of the continental mass?
Silica and Alumina are main minerals of the continental mass.
Which layer is having a radius of about 3500 km
The Earth’s structure can be defined in several ways, but general, we see the Earth as having a solid crust on the outside, an inner and an outer core, and the mantle in between.
Fossils are the remains of dead _______
Fossils are mainly found where animals and plants were buried by silt being deposited on top of them, So they are more common in the sea than on land.
Ferrous" means generally "containing iron". The word is derived from the Latin word ferrum ("iron"). Ferrous metals include steel and pig iron (with a carbon content of a few percent) and alloys of iron with other metals (such as stainless steel).
There are three major types of rocks except
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. Mantle is not a rock but a layer of earth.