Earth's Tectonic Plates

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Questions and Answers

Which two types of material make up tectonic plates?

  • Oceanic crust and continental crust (correct)
  • Silicon and aluminium
  • Mafic basaltic rocks and felsic granitic rocks
  • Silicon and magnesium

What are the two types of crust that make up tectonic plates called?

  • Mafic and felsic
  • Silicon and aluminium
  • Basaltic and granitic
  • Sima and sial (correct)

How thick are tectonic plates?

  • Around 200 km (124 mi)
  • Around 100 km (62 mi) (correct)
  • Around 500 km (310 mi)
  • Around 50 km (31 mi)

What are the three categories into which tectonic plates are sometimes subdivided?

<p>Major, minor, and microplates (D)</p> Signup and view all the answers

Which plates comprise the bulk of the continents and the Pacific Ocean?

<p>Major plates (A)</p> Signup and view all the answers

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