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Geology 100 exam 4 Questions and Answers with Verified Solutions | Latest 2026 Update

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Geology 100 exam 4 Questions and Answers with Verified Solutions | Latest 2026 Update

Institution
GEOLOGY 100
Course
GEOLOGY 100

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Geology 100 exam 4 Questions and Answers with Verified Solutions |
Latest 2026 Update




Q: Rivers do the following 3

Answer:
1. erode (picking up sediment)
2. Transport (moving sediment)
3. Deposit (depositing sediment)

Q: The 3 factors influencing river activity

Answer:
1. Gradient- Measured in m per km (black canyon
gradient: 18m/k)
2. Discharge- measured in cubic m per sec (cms)
calculation: Channel width*Channel depth*velocity= discharge
3. Geometry of the channel (drag)

, Geology 100 exam 4 Questions and Answers with Verified Solutions |
Latest 2026 Update




Q: idealized stream profile Stages

Answer:
Stage 1. steep gradient- erosion
(mountain headwaters)
Stage 2. Moderate gradient- balanced energy, neither eroding or depositing.
Stage 3. low gradient- deposits sediments (river deltas)

Q: The 2 ways used to measure stream energy

Answer:
1. Competence (of a river) - Is the measure of
the largest particle a river can carry at a given time
Increased width with increased velocity

Q: 2. Capacity (of a river)

Answer:
Maximum quantity of sediment a river can carry at a given time
Also is a function of velocity/discharge
Measured during flow
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