Answer:
2000 Kilometers.
Explanation:
We multiply how much the plate moves per year (10cm) by how many years the plate has been moving.
10 × 20000000 = 200000000
Then we convert the centimeters to kilometers
200000000 ÷ 100000 = 2000
Hope this helped friend.
Answer:
Cratons are generally found in the interiors of continents and are characteristically composed of ancient crystalline basement crust of lightweight felsic igneous rock such as granite. They have a thick crust and deep roots that extend into the mantle beneath to depths of 200 km.
Explanation:
I'm not 100% sure... But I think D Are Cold Currents. Again, I'm not 100% sure.
Answer:
The earth is made out of layers that separate according to their d<u>ensities.</u>
The density of each layer is affected by the <u>composition</u> of the material and the amount of <u>pressure </u>
it is under.
The thinnest and least dense layer is known as the <u>Crust.</u>
The layer under the most pressure is known as the <u>core.</u>
Such high amounts of pressure cause this layer to remain in a <u>Solid State of matter</u> even though the nickel and iron are at such a high temperature.
On the other hand, the outer core remains in a molten state of matter even though it is made out of the same materials as the inner core since there is not enough <u>pressure </u>to change it to a solid.
Explanation:
The above question now updated with the missing words provide information about how the compositional layers of the earth's crust are formed.
The three major determinants as already explained about how the layers have come to be are:
- Composition of Material
- Pressure on the material
- and their density
The Crust (which is the outmorst layer) comprises of more silica.
The Mantle is a combination of silica, magnesium, and iron.
The core is a combination of oxygen, nickel iron and sulphur.
Cheers
Coral reefs provide an important ecosystem for life underwater, protect coastal areas by reducing the power of waves hitting the coast, and provide a crucial source of income for millions of people. Coral reefs teem with diverse life. Thousands of species can be found living on one reef.