What are the number of plates inside the earth?

Question

Homework (( actually summer work ughh ))

Answer 1

hmm, i think if u look on google...................

Answer 2

plates inside the earth?

we dont have PLATES inside the earth but at the upper most layer of the earth on the crust (there is seven major plates on the crust)

The main plates are:

    * African Plate, covering Africa - Continental plate

    * Antarctic Plate, covering Antarctica - Continental plate

    * Australian Plate, covering Australia (fused with Indian Plate between 50 and 55 million years ago) - Continental plate

    * Eurasian Plate covering Asia and Europe - Continental plate

    * North American Plate covering North America and north-east Siberia - Continental plate

    * South American Plate covering South America - Continental plate

    * Pacific Plate, covering the Pacific Ocean - Oceanic plate

you might mean number of the layers of the earth:

The outermost layer of the Earth is the crust. This comprises the continents and ocean basins. The crust has a variable thickness, being 35-70 km thick in the continents and 5-10 km thick in the ocean basins. The crust is composed mainly of alumino-silicates.

The next layer is the mantle, which is composed mainly of ferro-magnesium silicates. It is about 2900 km thick, and is separated into the upper and lower mantle. This is where most of the internal heat of the Earth is located. Large convective cells in the mantle circulate heat and may drive plate tectonic processes.

The last layer is the core, which is separated into the liquid outer core and the solid inner core. The outer core is 2300 km thick and the inner core is 1200 km thick. The outer core is composed mainly of a nickel-iron alloy, while the inner core is almost entirely composed of iron. Earth's magnetic field is believed to be controlled by the liquid outer core.

The Earth is separated into layers based on mechanical properties in addition to composition. The topmost layer is the lithosphere, which is comprised of the crust and solid portion of the upper mantle. The lithosphere is divided into many plates that move in relation to each other due to tectonic forces. The lithosphere essentially floats atop a semi-liquid layer known as the asthenosphere. This layer allows the solid lithosphere to move around since the asthenosphere is much weaker than the lithosphere.

Answer 3

If it's homework, then you should look it up yourself instead of having everyone else do it. :\