Respuesta :

Answer:

A student studying primary succesion should focus on Granite rock.

Explanation:

  • Primary succession includes the presence of rock and the other elements that break down rocks to form soil and other stuffs.
  • As the student is focusing on the study of the primary succession the main topic would be the granite rock.
  • The other options relate to the later stage of succession like the Mesquite grassland comes after the primary succession stage.
  • Granite rock is the intrusive igneous rock that looks like a granular structure.
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