Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension. This sediment is often formed when weathering and erosion break down a rock into loose material in a source area.
Answer:
Random Motion is a motion in which an object didn't go in a straight manner, for ex: zig zag lines, curved, etc.
Explanation:
The movement of electrical charges inside the earth
Answer:
Part a)
Rate of charge flow is known as electric current
Part b)
Average current flow is

Part c)
As we know that current density is current per unit area

Explanation:
As we know that angular frequency of rotation is

now by basic definition of electric current
Part a)
Rate of charge flow is known as electric current

so here we have


Part b)
here we know that



now we have


Part c)
As we know that current density is current per unit area
So we have


