Which of the following are methods of relative aging of rocks? Select the three correct answers.(2 points)
Responses
original horizontality
original horizontality
angular relationships
angular relationships
radiometric dating
radiometric dating
superposition
superposition
original angularity
original angularity
cross-cutting relationships
original horizontality
superposition
cross-cutting relationships
How can Earth’s layers be defined? Select the two correct answers.(1 point)
Responses
by their chemical compositions
by their chemical compositions
by their physical properties
by their physical properties
by their thickness
by their thickness
by their temperatures
by their temperatures
by their amounts of land area
by their chemical compositions
by their physical properties
Which evidence would confirm that a given rock layer is newer than the layers around it?(1 point)
Responses
It is horizontally-oriented.
It is horizontally-oriented.
Other layers have been deposited above it.
Other layers have been deposited above it.
It has been crumpled and folded, while the other layers lie flat.
It has been crumpled and folded, while the other layers lie flat.
It cuts through all the other layers.
Other layers have been deposited above it.
Which statement describes metamorphic rock formation? Select the correct answer.(1 point)
Responses
Once-living organisms become buried.
Once-living organisms become buried.
Layers build up over time.
Layers build up over time.
Pressure causes rock to change.
Pressure causes rock to change.
Magma cools and hardens.
Pressure causes rock to change.
What should a model of the rock cycle show as the process that changes metamorphic rock to igneous rock?(1 point)
Responses
compaction followed by cementation
compaction followed by cementation
heating followed by pressure
heating followed by pressure
melting followed by cooling
melting followed by cooling
weathering followed by erosion
melting followed by cooling
What was Mohorovičić's observation?(1 point)
Responses
Seismic waves travelled at constant speeds.
Seismic waves travelled at constant speeds.
Seismic waves penetrated all Earth's layers.
Seismic waves penetrated all Earth's layers.
Seismic waves travelled at varying speeds.
Seismic waves travelled at varying speeds.
Seismic waves could not go through the brittle crust.