Describe the internal structure of the earth?

Question: Describe the internal structure of the earth?

The Earth's internal structure is characterized by its layered composition, each defined by distinct properties. The outermost layer is the crust, a solid silicate shell that varies in thickness from about 5 km beneath the oceans to up to 70 km beneath the continents. Beneath the crust lies the mantle, which extends to a depth of about 2,900 km. The mantle is divided into the upper and lower mantle, where the upper part includes the asthenosphere, a highly viscous layer upon which the tectonic plates move. The core is split into two parts: the outer core, which is a liquid layer responsible for creating the Earth's magnetic field through its flow, and the inner core, a solid sphere composed primarily of iron and nickel. This structure is inferred from various observations and measurements, including seismic wave analysis, gravitational fields, and direct sampling from volcanic activity.

Rjwala

Rjwala is your freely Ai Social Learning Platform. here our team solve your academic problems daily.