Which phrase best describes frost wedging?(1 point)
Responses
a type of physical weathering that occurs due to temperature changes
a type of physical weathering that occurs due to temperature changes
a type of erosion that occurs due to friction
a type of erosion that occurs due to friction
a type of physical weathering that occurs due to friction
a type of physical weathering that occurs due to friction
a type of erosion that occurs due to temperature changes
a type of physical weathering that occurs due to temperature changes
Why do scientists think the Grand Canyon was once covered by an ocean?(1 point)
Responses
The sedimentary rock type forming layers of the canyon formed under the sea.
The sedimentary rock type forming layers of the canyon formed under the sea.
The Grand Canyon is located along coastlines that likely flooded.
The Grand Canyon is located along coastlines that likely flooded.
Seawater has been found seeping up through the canyon floor.
Seawater has been found seeping up through the canyon floor.
Only an ocean would have the strength to erode the rock forming the Grand Canyon.
Only an ocean would have the strength to erode the rock forming the Grand Canyon.
The sedimentary rock type forming layers of the canyon formed under the sea.
is the world a stand
Stand refers to a term used in the manga and anime series "JoJo's Bizarre Adventure" to describe ghost-like entities with unique abilities. In reality, the concept of stands does not exist, and the world itself is not a stand.
The correct answer is:
a type of physical weathering that occurs due to temperature changes
The correct answer is: a type of physical weathering that occurs due to temperature changes.
To determine the correct response, we need to understand the definition of frost wedging and the processes involved.
Frost wedging is a type of physical weathering that occurs when water seeps into cracks and pores in rocks or soil. When the temperature drops below freezing, the water freezes and expands, exerting pressure on the surrounding materials. This expansion creates stress on the rocks, causing them to crack and eventually break apart. It is a gradual process and can lead to the disintegration of rocks over time.
Given this information, we can eliminate options 2 and 4. Erosion refers to the transportation of weathered materials, while frost wedging is a form of weathering. So, we are left with options 1 and 3.
Both options mention physical weathering, which aligns with frost wedging. However, only option 1 correctly identifies the cause of frost wedging as temperature changes. Option 3 mentions friction, which is not a factor in frost wedging.
Therefore, the phrase "a type of physical weathering that occurs due to temperature changes" best describes frost wedging.