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What causes convection currents in the asthenosphere that causes the plates to move?
The mountain was once part of the ocean floor
sea-floor spreading
Differences in density (cold sinking rock; hot rising rock)
Crust
all increase
Convection currents in the mantle
Continental drift theory
Divergent
What happens to temperature, density, and pressure and you go from the crust to the core?
The mountain was once part of the ocean floor
sea-floor spreading
Differences in density (cold sinking rock; hot rising rock)
Crust
all increase
Convection currents in the mantle
Continental drift theory
Divergent
If you find fossils of sea organisms on a mountain, what can you conclude?
The mountain was once part of the ocean floor
sea-floor spreading
Differences in density (cold sinking rock; hot rising rock)
Crust
all increase
Convection currents in the mantle
Continental drift theory
Divergent
What type of boundary formed the mid-ocean ridge?
The mountain was once part of the ocean floor
sea-floor spreading
Differences in density (cold sinking rock; hot rising rock)
Crust
all increase
Convection currents in the mantle
Continental drift theory
Divergent
What idea states that the continents were once joined together and have spread apart over millions of year?
The mountain was once part of the ocean floor
sea-floor spreading
Differences in density (cold sinking rock; hot rising rock)
Crust
all increase
Convection currents in the mantle
Continental drift theory
Divergent
When you cook vegetable soup, you might notice the veggies swirling in a circle in the boiling liquid. What is this a model of?
The mountain was once part of the ocean floor
sea-floor spreading
Differences in density (cold sinking rock; hot rising rock)
Crust
all increase
Convection currents in the mantle
Continental drift theory
Divergent
Which layer of the Earth is the least dense and is the thinnest?
The mountain was once part of the ocean floor
sea-floor spreading
Differences in density (cold sinking rock; hot rising rock)
Crust
all increase
Convection currents in the mantle
Continental drift theory
Divergent
What is the process that creates new ocean crust at the divergent boundary?
The mountain was once part of the ocean floor
sea-floor spreading
Differences in density (cold sinking rock; hot rising rock)
Crust
all increase
Convection currents in the mantle
Continental drift theory
Divergent
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