Option C is right that is <span> Knowing which minerals are in a rock can help you identify and classify that rock.</span>
The convection cell is basically a self-contained in which there is a motion, where the hotter fluid is moving upward because of the lesser density, while the cooler fluid is moving downward because it is denser. This leads to constant circular movement of the magma in the mantle layer, and the one that moves upward is constantly creating big pressure on the crust above it, penetrating through the cracks in it or melting it and intruding. As the magma pushes upward, it manages to get through the thinner and cracked crust between the plates that move away from each other at the divergent boundary. The magma reaches the ocean floor and quickly cools off, creating new crust, and that continues constantly, with more and more magma coming out and more and more new crust pilling up, eventually creating an underwater mountain range of volcanic origin known as mid-ocean ridge.
The northern sea route takes them thru artic waters and the water often freezes creating damage and delays
Basically it means when something is moving in a line and is rotating in a larger system at the same time it appears to move. If you look it up online you can easily find a picture or two that should explain it pretty well.
It’s true By the end of the 19th century, the Western powers and Japan had forced China’s ruling Qing dynasty to accept wide foreign control over the country’s economic affairs. In the Opium Wars (1839-42, 1856-60), popular rebellions and the Sino-Japanese War (1894-95), China had fought to resist the foreigners, but it lacked a modernized military and suffered millions of casualties.
