Which statement correctly describes why earthquakes happen?(1 point)
Responses
Earth’s crust undergoes a cycle from a solid material to magma.
Earth’s crust undergoes a cycle from a solid material to magma.
Earth’s crust switches places in a periodic manner.
Earth’s crust switches places in a periodic manner.
Earth’s crust suddenly slips along a fault.
Earth’s crust suddenly slips along a fault.
Earth’s crust near magma melts, and the ground collapses.
Earth’s crust suddenly slips along a fault.
Which describes the locations where Earth’s volcanoes are formed?(1 point)
Responses
They form in areas where Earth’s crust is thin.
They form in areas where Earth’s crust is thin.
They form in the interiors of continents.
They form in the interiors of continents.
They form along plate boundaries.
They form along plate boundaries.
They form along the eastern coasts of continents.
They form along the eastern coasts of continents.
They form along plate boundaries.
Which feature forms when one plate is forced to bend and dive under the other?
(1 point)
Responses
a submarine volcano
a submarine volcano
a volcanic cone
a volcanic cone
a mid-ocean ridge
a mid-ocean ridge
a deep canyon
a deep canyon
In the context of plate tectonics and the associated features, when one plate is forced to bend and dive under the other, it forms a subduction zone rather than just a deep canyon. A subduction zone often has a deep oceanic trench associated with it, which is a type of deep canyon in the ocean floor. If the term "canyon" refers more broadly to a trench or significant depression in the Earth's surface due to subduction, then "a deep canyon" (referring to a deep oceanic trench) would be correct. However, if the term "canyon" is understood to refer to a feature commonly found on land, then it would not correctly describe the feature formed by subducting plates.
For clarity and accuracy within geological terms, "a deep oceanic trench" would be a precise response for a feature that forms when one plate dives under another.
What happens to the energy produced by blocks of Earth’s crust slipping past each other?(1 point)
Responses
It spreads out in random directions.
It spreads out in random directions.
It radiates outward in all directions.
It radiates outward in all directions.
It increases as it reaches the surface.
It increases as it reaches the surface.
It disappears at it moves through the crust.
It radiates outward in all directions.
When blocks of Earth's crust slip past each other during an earthquake, the energy produced by the slip is released as seismic waves. These waves radiate outward from the fault in all directions, both through the Earth's interior and across its surface.