A group of earth science students were investigating in the laboratory. They took granite rock and limestone samples and massed them on a balance. Then, students placed the rock samples in closed plastic vials. The students shook them vigorously for thirty minutes. Students then massed the rocks again. What question might the students be testing?(1 point)
Responses
How do rocks interact during mechanical manipulation?
How do rocks interact during mechanical manipulation?
Which rock type changes more due to physical weathering?
Which rock type changes more due to physical weathering?
How does granite change shape after mechanical breakdown?
How does granite change shape after mechanical breakdown?
Why does granite rock break down more quickly?
How do rocks interact during mechanical manipulation?
In Utah’s Arches National Park we can see many interesting shapes like this one below. Many different things helped to shape this arch: earthquakes, rivers, freezing water, and wind. Which one of these made the surface of the arch smooth and rounded?
(1 point)
Responses
water freezing in the cracks
water freezing in the cracks
strong winds
strong winds
earthquakes
earthquakes
a river running through the rocks
water freezing in the cracks
Which is the most correct order of the theorized evolution of life on Earth?(1 point)
Responses
Mammals formed, then fish, then reptiles, amphibians, multi-cellular organisms, cyanobacteria and then single-celled organisms produced methane
Mammals formed, then fish, then reptiles, amphibians, multi-cellular organisms, cyanobacteria and then single-celled organisms produced methane
Multi-cellular organisms, then fish, amphibians, reptiles, mammals, single-celled organisms produced greenhouse gases
Multi-cellular organisms, then fish, amphibians, reptiles, mammals, single-celled organisms produced greenhouse gases
Cyanobacteria produced oxygen, Single-celled organisms produced methane, multi-cellular organisms began to form, fish, amphibians, reptiles and then mammals
Cyanobacteria produced oxygen, Single-celled organisms produced methane, multi-cellular organisms began to form, fish, amphibians, reptiles and then mammals
Single-celled organisms produced methane, cyanobacteria produced oxygen, multi-cellular organisms began to form, fish, amphibians, reptiles and then mammals
Cyanobacteria produced oxygen, Single-celled organisms produced methane, multi-cellular organisms began to form, fish, amphibians, reptiles and then mammals
A river delta forms at the mouth of a river where it enters a larger body of water. Usually the delta is shaped like a triangle. What process causes delta formation?(1 point)
Responses
deposition of sediments
deposition of sediments
erosion of the river bank
erosion of the river bank
the movement of the tides
the movement of the tides
wave action
deposition of sediments
A coral reef has thrived near a coastline for thousands of years. Over the last decade, climate change has caused sea levels to rise. The coral reef is now deeper under water. Which sentence accurately describes the effects of this change? Select the two correct answers.(1 point)
Responses
The coastline now has more protection against erosion.
The coastline now has more protection against erosion.
The coral reef now has more protection against deposition.
The coral reef now has more protection against deposition.
The coastline now has less protection against erosion.
The coastline now has less protection against erosion.
The coral reef now has less protection against deposition.
The coastline now has less protection against erosion.
The coral reef now has less protection against deposition.