Question

What are the three types of boundaries, and what actions occur in each one?

Answer 1

There are three types of boundaries: divergent, convergent, & transform plate boundaries.

A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, lava spews from long fissures and geysers spurt superheated water. Frequent earthquakes strike along the rift. Beneath the rift, magma-molten rock-rises from the mantle. It oozes up into the gap and hardens into solicitor rock, forming new crust on the torn edges of the plates. Magma from the mantle solidifies into basalt, a dark, dense rock that underlies the ocean floor. Thus at divergent boundaries,ocean crust,made of basalt,is created.

When two plates come together, it is known as convergent boundary. The impact of the two colliding plates buckles the edge of one or both plates up into a rugged mountain range, and sometimes bends the other down into a deep seafloor trench. A chain of volcanoes often forms parallel to the boundary, to the mountain range & to the trench. Powerful earthquakes shake a wide area on both sides of the boundary.

If one of the colliding plates is topped with oceanic crust, it is forced down into the mantle where it begins to melt. Magma rises into and through the other plate, solidifying into new crust. Magma formed from melting plates solidifies into granite,a light colored, low-density rock that makes up the continents. Thus at convergent boundaries, continental crust, made of granite, is created, & oceanic crust is destroyed.

Two plates sliding past each other forms a Transform plate boundary. Natural or human -made structures that cross a transform boundary are offset - split into pieces and carried in opposite directions. Rocks that line the boundary are pulverized as the plates grind along, creating a liner fault valley or undersea canyon. As the plates alternately jam & jump against each other, earthquakes rattle through a wide boundary zone. In contrast to convergent and divergent boundaries, no magma is formed. Thus, crust is cracked and broken at transform margins, but is not created or destroyed.

Answer 2

What are the three types of boundaries, and what actions occur in each one

Explanation:

• The three types of the boundaries on the earth are those of the destructive and the constructive and the transform boundary and they are called as the divergent and the convergent plate boundaries. The constructive or divergent boundary is one that is responsible for the formation of the new plate and the example is that of the Atlantic ocean.

• The destructive plate boundary known as convergent plate boundary is an example of the pacific plate which is colliding with the North American plate and the expansion of the Atlantic and the shrinking of the pacific ocean, and the third plate boundary is the transform boundary that is the san Andreas boundary, which moves from side to side.

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• https://brainly.in/question/5546079 answered by  Janimousam