The Rock Cycle — Quiz Answers

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1
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How do the processes shown in the table connect to the larger rock cycle?

A
Crystal growth inside geodes is an example of how minerals are recycled and redeposited, linking weathering and sedimentary processes.
B
Crystal growth inside geodes is an example of how tectonic uplift exposes buried rocks to surface conditions.
C
Crystal growth inside geodes is an example of how magma cooling underground produces new igneous rock formations.
D
Crystal growth inside geodes is an example of how erosion and transport move sediments into new depositional environments.
2
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Which statement best describes the trend between water temperature and crystal growth rate?

A
Growth rate depends only on mineral concentration, not water temperature.
B
Growth rate stays about the same regardless of water temperature.
C
Growth rate decreases steadily as water temperature increases.
D
Growth rate generally increases as water temperature increases.
3

Why might geodes form more easily in environments with higher mineral concentrations in groundwater?

A
More dissolved minerals mean more building blocks are available for crystals to grow.
B
High mineral concentration causes crystals to dissolve back into the groundwater.
C
Higher mineral concentration lowers the temperature needed for crystal growth.
D
Mineral concentration controls pH, which is the most important factor for crystal growth.
4

Arrange the events in the correct order to explain how magma can eventually become sedimentary rock. Place the first event at the top of the list.

Answer not available
5

Which sequence of processes would most likely result in the formation of metamorphic rock from igneous rock?

A
Weathering → Erosion → Deposition
B
Crystallization → Erosion → Uplift
C
Melting → Eruption → Weathering
D
Burial → Heat and Pressure
6

Classify each location based on whether it is a site of energy input or energy release.

Answer:

region undergoing heat and pressure transformation,subduction zone where rocks melt|area where magma crystallizes into igneous rock,area with a volcanic eruption

7

Which sequence of processes would most likely result in the formation of metamorphic rock from igneous rock?

A
Burial → Heat and Pressure
B
Weathering → Erosion → Deposition
C
Crystallization → Erosion → Uplift
D
Melting → Eruption → Weathering
8

The geologists compared the regions with higher erosion rates (X and Z) to the region with the lowest erosion rate (Y). What trend did the geologists observe?

A
Higher erosion rates tend to reduce the total time to reach metamorphism.
B
Higher erosion rates always result in slower burial of rocks.
C
Erosion rate does not appear related to metamorphic transformation time.
D
Lower erosion rates make metamorphism happen faster.
9

The geologists define efficiency as how quickly rocks reach the required depth and conditions for metamorphism. In their model, they assume that rocks must usually be buried to a depth of at least 3km to become metamorphic; however, their model also uses different temperatures and pressures at different locations, so the depth at which metamorphosis occurs can vary. Which region is likely experiencing the most efficient transformation of surface rocks into metamorphic rocks?

A
All three regions are equally efficient because they all produce metamorphic rock.
B
Region Z is the most efficient because it forms metamorphic rocks in the least time.
C
Region X is the most efficient because it has the fastest burial rate.
D
Region Y is the most efficient because it reaches a depth of 3 km in the longest time.

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