A student was asked to prepare a model of the rock cycle as it moves matter slowly through the Earth. The student creates a model, as shown here. In order to revise the model, how should the lettered components be modified in order to create an accurate model? Select all choices that apply.

Responses
A Letter A should represent igneous rock that is extruded from magma.Letter A should represent igneous rock that is extruded from magma.
B Letters A and B should both be igneous rock, which is found near the Earth's surface.Letters A and B should both be igneous rock, which is found near the Earth's surface.
C Letters C and B should be sedimentary rock, which is found under layers of other materials.Letters C and B should be sedimentary rock, which is found under layers of other materials.
D Letter C should represent metamorphic rock which changes composition under heat and pressure.Letter C should represent metamorphic rock which changes composition under heat and pressure.
E Letter B should represent sedimentary rock that is buried by layers of sand and deposited material.Letter B should represent sedimentary rock that is buried by layers of sand and deposited material.

1 answer

To revise the model of the rock cycle effectively, the following adjustments should be made based on accurate geological processes:

A. Letter A should represent igneous rock that is extruded from magma.
This is correct if Letter A is intended to represent rocks formed through volcanic activity, meaning it should depict extrusive igneous rock.

D. Letter C should represent metamorphic rock which changes composition under heat and pressure.
This is correct if Letter C is intended to reflect the transformation of existing rocks into metamorphic rock due to heat and pressure.

E. Letter B should represent sedimentary rock that is buried by layers of sand and deposited material.
This is appropriate if Letter B is to depict sedimentary rocks that are formed by the compaction and cementation of sediments.

Responses A, D, and E should be selected for modifications to create an accurate model of the rock cycle.