dx Flashcards

1
Q

Describe what happens when two tectonic plate collide along a subduction zone.

A
  • One plate gets pushes underneath the other.
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2
Q

what is primary succession?

A
  • Primary succession is the series of changes that happen in an area after an extreme disturbance.
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3
Q

Explain how primary succession can lead to soil formation on a newly formed volcanic landscape.

A
  • Primary succession helps in soil formation after volcanic activities. First, pioneer species enter the area and they will start to break down the rocks and contribute organic matter to form rudimentary soil. As organic plants grow and die, the soil will become more fertile and capable of holding plant lives.
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4
Q

what is subduction and how does it lead to volcanic activity

A

subduction is the process in plate tectonics, where the edge of the crustal plate descend below the edge of another. As the descending plate goes sinks into the Earth’s mantle it will begin to melt. Then, this magma rises up to the overlying plate, eventually rising up to the surface and causes volcanic eruptions.

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5
Q

explain how a tsunami is generated along a subduction zone

A
  • the deformation of rocks during the subduction of tectonic plates, creates small tremors on the ocean floor. This underwater earthquake thus leads to tsunamis. And volcanic erruptions may also trigger tsunamis.
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6
Q

describe one negative ecological impact that tsunamis have on coastal environments

A
  • Tsunamis can destroy ecological habitats for marine and coastal species. Which is dangerous because these habitats serve as a feeding, nursey and breeding ground for a lot of species that lives there.
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7
Q

describe what happens to the tectonic plates along a transform boundary at the moment when an earthquake occurs

A
  • The tectonic plates that were previously locked due to friction will suddenly slide past each other which leads to a large amount of energy waves being released. With these energy waves, it results in seismic activities associated with earthquakes.
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8
Q

describe what happens to the tectonic plates along a transform boundary

A
  • The tectonic plates are locked in place, building up tension and stress over time. But when the plates start to slide past each other, the tension and stress will be released creating an earthquake.
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