G202 EXAM 2 - EARTH SYSTEMS AND
GEOMORPHOLOGY (ADVANCED)
QUESTIONS AND ANSWERS 100%
VERIFIED. JUST RELEASED
1. Which process involves the chemical breakdown of silicate minerals through the reaction
with water and hydrogen ions?
A. Hydrolysis
B. Oxidation
C. Carbonation
D. Exfoliation
Answer: A
Conceptual Explanation: Hydrolysis is the specific chemical weathering process where
silicate minerals like feldspar react with water to form clay minerals.
2. In which type of drainage pattern do streams follow a trellis-like geometry, often indicating
underlying folded or tilted rock layers?
A. Dendritic
B. Radial
C. Deranged
,D. Trellis
Answer: D
Conceptual Explanation: Trellis drainage patterns develop in areas of alternating weak
and resistant bedrock, often associated with folded topography like the Ridge and Valley
province.
3. What is the maximum size of particles that a stream can transport called?
A. Competence
B. Load
C. Capacity
D. Saltation
Answer: A
Conceptual Explanation: Competence refers to the largest particle size a stream can
move, which is determined by the stream’s velocity.
4. The rapid movement of a cohesive mass of soil or rock along a curved slip plane is defined
as:
A. Slump
B. Debris flow
C. Earthflow
D. Creep
, Answer: A
Conceptual Explanation: A slump is a rotational slide where the material moves along a
concave-upward surface, creating a distinct scarp.
5. Which of the following conditions is most likely to lead to an increase in groundwater
recharge?
A. Steep slopes and heavy rain
B. Low permeability soil and urbanization
C. Frozen ground and high intensity precipitation
D. Gentle slopes and high permeability soil
Answer: D
Conceptual Explanation: Recharge is maximized when water has time to infiltrate (gentle
slopes) and can pass easily through the substrate (high permeability).
6. What term describes the level below which a stream cannot erode its bed?
A. Thalweg
B. Base level
C. Gradient
D. Knickpoint
Answer: B
GEOMORPHOLOGY (ADVANCED)
QUESTIONS AND ANSWERS 100%
VERIFIED. JUST RELEASED
1. Which process involves the chemical breakdown of silicate minerals through the reaction
with water and hydrogen ions?
A. Hydrolysis
B. Oxidation
C. Carbonation
D. Exfoliation
Answer: A
Conceptual Explanation: Hydrolysis is the specific chemical weathering process where
silicate minerals like feldspar react with water to form clay minerals.
2. In which type of drainage pattern do streams follow a trellis-like geometry, often indicating
underlying folded or tilted rock layers?
A. Dendritic
B. Radial
C. Deranged
,D. Trellis
Answer: D
Conceptual Explanation: Trellis drainage patterns develop in areas of alternating weak
and resistant bedrock, often associated with folded topography like the Ridge and Valley
province.
3. What is the maximum size of particles that a stream can transport called?
A. Competence
B. Load
C. Capacity
D. Saltation
Answer: A
Conceptual Explanation: Competence refers to the largest particle size a stream can
move, which is determined by the stream’s velocity.
4. The rapid movement of a cohesive mass of soil or rock along a curved slip plane is defined
as:
A. Slump
B. Debris flow
C. Earthflow
D. Creep
, Answer: A
Conceptual Explanation: A slump is a rotational slide where the material moves along a
concave-upward surface, creating a distinct scarp.
5. Which of the following conditions is most likely to lead to an increase in groundwater
recharge?
A. Steep slopes and heavy rain
B. Low permeability soil and urbanization
C. Frozen ground and high intensity precipitation
D. Gentle slopes and high permeability soil
Answer: D
Conceptual Explanation: Recharge is maximized when water has time to infiltrate (gentle
slopes) and can pass easily through the substrate (high permeability).
6. What term describes the level below which a stream cannot erode its bed?
A. Thalweg
B. Base level
C. Gradient
D. Knickpoint
Answer: B
