EVERYDAY SCIENCE

SCIENCE

EARTH SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The Earth has ____ main structural components.
A
2
B
4
C
3
D
6
Explanation: 

Detailed explanation-1: -The structure of the earth is divided into four major components: the crust, the mantle, the outer core, and the inner core . Each layer has a unique chemical composition, physical state, and can impact life on Earth’s surface.

Detailed explanation-2: -Inner Core. The inner core is the deepest layer on Earth.

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.

Detailed explanation-4: -The earth is made up of three concentric layers-crust, mantle and core. The uppermost layer over the earth’s surface is called the crust. It is about 35 km thick on the continental masses and only 5 km thick on the ocean floor. It is made up of silica and alumina and thus called sial.

Detailed explanation-5: -Core, mantle, and crust are divisions based on composition. The crust makes up less than 1 percent of Earth by mass, consisting of oceanic crust and continental crust is often more felsic rock. The mantle is hot and represents about 68 percent of Earth’s mass. Finally, the core is mostly iron metal.

There is 1 question to complete.