EROSION, WEATHERING AND
SEDIMENTATION EXAM QUESTIONS AND
100% VERIFIED ANSWERS!!
What is weathering?
The breaking down of rocks into smaller pieces over time due to exposure to the atmosphere,
moving water, and biological organisms.
How does weathering differ from erosion?
Weathering occurs in the same place with little movement of particles, while erosion involves
the movement and transportation of rocks and minerals to new locations.
What happens during sedimentation?
Sedimentation occurs when new materials reach a location and accumulate there.
What are the three categories of weathering?
Chemical, physical, and organic (biological) weathering.
What is chemical weathering?
Chemical weathering occurs when the chemical composition of rocks changes through exposure
to water or oxygen.
How does physical weathering occur?
Physical weathering occurs when rocks are broken into smaller pieces without changing their
chemical composition.
What is one method of physical weathering?
Temperature change, which can weaken a rock's structure and create cracks.
How does freeze-thaw action contribute to physical weathering?
Water entering cracks in rocks freezes and expands, increasing the size of the cracks and
breaking the rock apart.
, What role do ocean waves play in weathering?
Ocean waves can weather rock through constant motion, and the salts in seawater can change the
chemical composition of the rocks.
What is organic (biological) weathering?
Organic weathering relies on living organisms, such as lichen, to break down rocks into smaller
particles.
How do tree roots contribute to weathering?
Tree roots can grow into cracks in rocks, and as they expand, they force the rock apart,
contributing to physical weathering.
What are the four types of erosion?
Ice, gravity, wind, and water.
How does ice erosion occur?
Ice erosion is associated with glaciers, which crush and break rocks below them as they move,
carrying sediments with them.
What happens to sediments when a glacier moves?
As a glacier reaches new locations, it releases sediments that were carried within it, depositing
them far from their original location.
How does gravity function in erosion?
Gravity works as a form of erosion in conjunction with weathering, helping to move sediments
downhill.
What is turbidity in relation to sedimentation?
Turbidity refers to the cloudiness or haziness of a fluid caused by large numbers of individual
particles that are generally invisible to the naked eye.
What is a delta?
SEDIMENTATION EXAM QUESTIONS AND
100% VERIFIED ANSWERS!!
What is weathering?
The breaking down of rocks into smaller pieces over time due to exposure to the atmosphere,
moving water, and biological organisms.
How does weathering differ from erosion?
Weathering occurs in the same place with little movement of particles, while erosion involves
the movement and transportation of rocks and minerals to new locations.
What happens during sedimentation?
Sedimentation occurs when new materials reach a location and accumulate there.
What are the three categories of weathering?
Chemical, physical, and organic (biological) weathering.
What is chemical weathering?
Chemical weathering occurs when the chemical composition of rocks changes through exposure
to water or oxygen.
How does physical weathering occur?
Physical weathering occurs when rocks are broken into smaller pieces without changing their
chemical composition.
What is one method of physical weathering?
Temperature change, which can weaken a rock's structure and create cracks.
How does freeze-thaw action contribute to physical weathering?
Water entering cracks in rocks freezes and expands, increasing the size of the cracks and
breaking the rock apart.
, What role do ocean waves play in weathering?
Ocean waves can weather rock through constant motion, and the salts in seawater can change the
chemical composition of the rocks.
What is organic (biological) weathering?
Organic weathering relies on living organisms, such as lichen, to break down rocks into smaller
particles.
How do tree roots contribute to weathering?
Tree roots can grow into cracks in rocks, and as they expand, they force the rock apart,
contributing to physical weathering.
What are the four types of erosion?
Ice, gravity, wind, and water.
How does ice erosion occur?
Ice erosion is associated with glaciers, which crush and break rocks below them as they move,
carrying sediments with them.
What happens to sediments when a glacier moves?
As a glacier reaches new locations, it releases sediments that were carried within it, depositing
them far from their original location.
How does gravity function in erosion?
Gravity works as a form of erosion in conjunction with weathering, helping to move sediments
downhill.
What is turbidity in relation to sedimentation?
Turbidity refers to the cloudiness or haziness of a fluid caused by large numbers of individual
particles that are generally invisible to the naked eye.
What is a delta?
