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