Question

post test: the history of earth
compaction & cementation
sediment
sedimentary rock
igneous rock
metamorphic rock
magma
pressure & heat
melting
erosion & weathering
crystallization

Explanation:

Identify the rock cycle components

The diagram represents the rock cycle, showing transitions between three main rock types: sedimentary rock, metamorphic rock, and igneous rock, along with sediment and magma. The dashed boxes represent geological processes that drive these transitions.

Analyze transitions to sediment

• Sedimentary rock to sediment: Driven by erosion & weathering.
• Igneous rock to sediment: Driven by erosion & weathering.
• Metamorphic rock to sediment: Driven by erosion & weathering.

Thus, the three dashed boxes pointing towards sediment (top-right, top-middle, and center-middle) represent erosion & weathering.

Analyze transitions to metamorphic rock

• Sedimentary rock to metamorphic rock: Driven by pressure & heat (left-middle dashed box).
• Igneous rock to metamorphic rock: Driven by pressure & heat (lower-middle-right dashed box).

Analyze transitions to magma

• Metamorphic rock to magma: Driven by melting (bottom-left dashed box).
• Sedimentary rock to magma: Driven by melting (center-middle dashed box pointing to magma).
• Igneous rock to magma: Driven by melting (center-middle dashed box pointing to magma).

Analyze transitions to igneous rock

• Magma to igneous rock: Driven by cooling and crystallization (bottom-right dashed box).

Answer:

Based on the standard rock cycle pathways shown in the diagram, here are the labels for each dashed box:

• Left-middle box (between sedimentary rock and metamorphic rock):

pressure & heat

• Bottom-left box (between metamorphic rock and magma):

melting

• Bottom-right box (between magma and igneous rock):

crystallization

• Top-middle, top-right, and center-middle boxes (pointing towards sediment):

erosion & weathering

• Lower-middle-right box (pointing from igneous rock to metamorphic rock):

pressure & heat