How is continental crust different from oceanic crust?

oceanic crust is thinner and more likely to sink.

continental crust is more dense and lighter.

oceanic crust is thicker and more dense.

continental crust is thicker and more likely to sink.

look at this section of a tectonic map.

which statement describes what is happening at the plate boundary?

an oceanic plate is subducting.

two continental plates are colliding.

the seafloor is spreading.

two plates are sliding past each other.

at which type of boundary do lithospheric plates collide?

contour boundaries

gravitational boundaries

convergent boundaries

convection boundaries

according to the theory of plate tectonics, how do two plates interact to form earth's largest mountain ranges?

collide

create new plates

move apart

scrape past each other

how can mountain formation be described according to the theory of plate tectonics?

as any two plates meet at a fault line boundary, mountains are formed.

as two continental plates collide along a convergent boundary, mountains are formed.

as a continental plate and an oceanic plate come together at a divergent boundary, mountains are formed.

as two continental plates move past each other at a transform boundary, mountains are formed.

1. Oceanic crust is thinner and more likely to sink.

Explanation:

The oceanic crust is more dense than the continental crust . This is due to the kind of rocks it contains. The oceanic crust is dominantly Mafic rocks such as basalt which are more denser than the dominant rocks (granitic) found in the continental crust .

The highly dense nature of the oceanic crust contribute to it ability to sink easily. The oceanic crust is thinner than the continental crust . In other words the continental crust is thicker(125 km - 250 km) than the oceanic crust(averagely, 70 km).

2. The seafloor is spreading.

Explanation:

Sea floor spreading occur within the oceanic crust . This involve the moving apart of the sea floor on both  sides with the mid oceanic ridge separating them.

From the diagram above you could see the ocean floor spreading apart with the mid oceanic ridge separating them. Through the mid oceanic ridges magma up-wells to the sea floor surface and after much cooling it forms a new crust. This is why as one move away from the mid oceanic ridge the rocks become older.  

3. convergent boundaries.

Explanation:

The convergent boundary is where lithospheric plates collides. The lithospheric plate collision might be the oceanic and oceanic lithospheric plate collision, oceanic and continental lithospheric plate collision and continental and continental lithospheric plate collision.  

4. collide

Explanation:

The plates collides to form a mountain belts . In a situation where there is a collision between a less dense continental plates, the collision leads to an uplift . since both rocks are less dense they are likely to be more buoyant to cause an uplift or high elevated structure.

5. As two continental plates collide along a convergent boundary, mountains are formed.

Explanation:

Along a convergent boundary where two continental crust collides, since both plates are less dense non will be subducted . They are likely to cause mountain belts and other high elevated structures. These continental plates collision accounts for the creation of the highest mountain in the world, mountain Everest . The collision of Indian continental plates and the Asia continental plates, due to their ability to move easily and resist subduction, results to various mountainous bodies like the Himalayas and Everest mountain  

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