The term that describes physical weathering due to collisions between sand and sediment carried in moving water and the rock surface over which the water flows is abrasion.
What term describes physical weathering due to collisions between sand and sediment carried in moving water and the rock surface over which the water flows?(1 point)
Responses
erosion
erosion
wedging
wedging
dissolving
dissolving
abrasion
11 answers
Which process is an important part of chemical weathering through oxidation?(1 point)
Responses
oxygen capturing protons from other elements
oxygen capturing protons from other elements
oxygen giving up protons to other elements
oxygen giving up protons to other elements
oxygen capturing electrons from other elements
oxygen capturing electrons from other elements
oxygen giving up electrons to other elements
Responses
oxygen capturing protons from other elements
oxygen capturing protons from other elements
oxygen giving up protons to other elements
oxygen giving up protons to other elements
oxygen capturing electrons from other elements
oxygen capturing electrons from other elements
oxygen giving up electrons to other elements
The process that is an important part of chemical weathering through oxidation is oxygen capturing electrons from other elements.
The Rocky Mountains began forming in the western United States about 60 million years ago. The Appalachian Mountains and the Rocky Mountains were similar in height when they first formed. Which statements about the Rocky Mountains are true? Select the two correct answers.(1 point)
Responses
They are younger than the Appalachian Mountains.
They are younger than the Appalachian Mountains.
They are shorter than the Appalachian Mountains.
They are shorter than the Appalachian Mountains.
They are taller than the Appalachian Mountains.
They are taller than the Appalachian Mountains.
They are older than the Appalachian Mountains.
Responses
They are younger than the Appalachian Mountains.
They are younger than the Appalachian Mountains.
They are shorter than the Appalachian Mountains.
They are shorter than the Appalachian Mountains.
They are taller than the Appalachian Mountains.
They are taller than the Appalachian Mountains.
They are older than the Appalachian Mountains.
The two correct statements about the Rocky Mountains are:
- They are younger than the Appalachian Mountains.
- They are taller than the Appalachian Mountains.
Which describes the Grand Canyon as it will be one million years from today? Select the two correct answers.(1 point)
Responses
It will become narrower, as weathered rock collects at the canyon’s edges.
It will become narrower, as weathered rock collects at the canyon’s edges.
It will become wider, as the edges of the canyon are weathered and eroded.
It will become wider, as the edges of the canyon are weathered and eroded.
It will become deeper, as the Colorado River continues to carve into the rock.
It will become deeper, as the Colorado River continues to carve into the rock.
It will become shallower, as the Colorado River deposits sediment in the canyon.
Responses
It will become narrower, as weathered rock collects at the canyon’s edges.
It will become narrower, as weathered rock collects at the canyon’s edges.
It will become wider, as the edges of the canyon are weathered and eroded.
It will become wider, as the edges of the canyon are weathered and eroded.
It will become deeper, as the Colorado River continues to carve into the rock.
It will become deeper, as the Colorado River continues to carve into the rock.
It will become shallower, as the Colorado River deposits sediment in the canyon.
The two correct statements about the Grand Canyon as it will be one million years from today are:
- It will become wider, as the edges of the canyon are weathered and eroded.
- It will become deeper, as the Colorado River continues to carve into the rock.
Which of these facts could you determine by reading the geologic time scale? Select the two correct answers.(1 point)
Responses
the life forms that lived in each era
the life forms that lived in each era
how old Earth is
how old Earth is
the number of eras in Earth's history
the number of eras in Earth's history
the events that ended major divisions of geologic time
the events that ended major divisions of geologic time
Responses
the life forms that lived in each era
the life forms that lived in each era
how old Earth is
how old Earth is
the number of eras in Earth's history
the number of eras in Earth's history
the events that ended major divisions of geologic time
the events that ended major divisions of geologic time
The two correct answers that you could determine by reading the geologic time scale are:
- The life forms that lived in each era.
- The events that ended major divisions of geologic time.
What provides evidence of an increase in animal species at the same time that atmospheric oxygen concentrations increased?(1 point)
Responses
fossil record
fossil record
anaerobic organisms
anaerobic organisms
rust deposits
rust deposits
stromatolites
Responses
fossil record
fossil record
anaerobic organisms
anaerobic organisms
rust deposits
rust deposits
stromatolites
The correct answer is fossil record. The fossil record provides evidence of an increase in animal species coinciding with the increase in atmospheric oxygen concentrations.