Which of the layers of Earth has the greatest density?
inner core
The table below shows several minerals found in Earth's crust.
Based on the information in the table, which mineral is also an element?
graphite
Which events are most common along tectonic plate boundaries
earthquakes and volcanoes
label the seismic waves from soonest to latest?
P waves < S waves < Surface Waves
Where are the tectonic plates located?
lithosphere
What is produced when existing rock is weathered and eroded?
sediment
Identical rock types, identical fossils, and very similar mountain ranges are found on different continents that are separated by a wide ocean. Which of these best explains these observations?
These continents were joined together at one time in the past.
tidal cycles are caused plate tectonics true or false
false
According to the continental drift theory, a single, huge continent once existed called
pangaea
What type of rock forms when heat and pressure change the structure, texture, or composition of sedimentary rock?
Metamorphic
Subduction is when one plate goes under another plate. What causes this plate to go under the other plate?
it is more dense than the top plate.
false
Which events are most common along tectonic plate boundaries
In the rock cycle, this is when sediments are placed into a new location to eventually become new sedimentary rock.
deposition
Which of the following aids in the weathering and erosion of rocks?
rain and wind
The upper part of the mantle that is malleable is called _______.
Asthenosphere
Which method of thermal energy transfer is being depicted in this illustration (by the red and blue arrows)? 
convection
Some processes in the rock cycle are listed below.Which type of rock is most likely to form by Process Z?
sedimentary
Which provides the best evidence for the theory that faults and volcanoes are results of tectonic plate interactions?
Faults and volcanoes are often found at tectonic plate boundaries.
Which two metals are the inner and outer core made of?
iron and nickle