GEOLOGY

EARTH SCIENCE

TECTONICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are facts about convergent boundaries?
A
When 2 oceanic plates converge, the more dense plate sinks below the less dense plate.
B
Where pieces of Earth’s crust diverge on land, a rift valley occurs.
C
When a dense oceanic plate converges with a continental plate, it can push up the continental plate forming mountains and volcanoes.
D
When 2 continental plates converge, the collision squeeze the crust into high mountain ranges.
Explanation: 

Detailed explanation-1: -Continental crust is too buoyant to subduct. When two continental plates converge, they smash together and create mountains. The amazing Himalaya Mountains are the result of this type of convergent plate boundary. The Appalachian Mountains resulted from ancient convergence when Pangaea came together.

Detailed explanation-2: -Subduction Zones are convergent boundaries The plates form a subduction zone with one plate descending beneath the other plate. Two ocean plates converge forming a subduction zone also. Two continental plates colliding form a collision zone. The two continental plates instead form mountain ranges like the Himalayas.

Detailed explanation-3: -If two tectonic plates collide, they form a convergent plate boundary. Usually, one of the converging plates will move beneath the other, a process known as subduction. Deep trenches are features often formed where tectonic plates are being subducted and earthquakes are common at subduction zones as well.

Detailed explanation-4: -Convergent (Colliding): This occurs when plates move towards each other and collide. When a continental plate meets an oceanic plate, the thinner, denser, and more flexible oceanic plate sinks beneath the thicker, more rigid continental plate.

Detailed explanation-5: -When two continental plates meet, they form a convergent boundary. Each plate carries continental material. These continental materials are very light and therefore can’t be subducted into the mantle. What happens is that the two plates begin to hit each other, collide and pile up to form a large mountain range.

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