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What else can I help you with?
In earths crust What type of rock is found under the oceans?
Oceanic crust, new oceanic crust is produced by seafloor spreading.
Do the seafloor spreading hold the earths plates in place?
Yes tho, my book says something like that I how I see here, yes.
What Three types of evidence from the sea floor that prove earths tectonic plates move?
Earthquakes along the seafloor, tsunamis, and changed water movements.
How would you describe the earths outer core?
hot solid
Describe earths outer core?
hot liquid layer
What land forms are caused by the earths moving plates?
1. Seafloor spreading, new crust is made 2. Mountain ranges 3. Volcanoes 4. Faults
What do scientist use to describe the sequence and length of changes to the earths crust?
Wave Length.
How would you describe the plates that form earths crust rigid or half melted?
rigid
What is the difference of seafloor spreading and continental drift?
In continental drift it says that they were drifted apart by the spin of the earth and in seafloor spreading the earths crust is drifted apart by the ridges in the mid-ocean.
What units would you use to describe the speed of earths plates?
distance=speed x time.
What if earths magnetic field was fixed in place and the polarity didn't reverse what effect would this have on our observations of seafloor basalts?
If Earth's magnetic field was fixed without reversals, newly-formed seafloor basalts would only show one magnetic orientation. This uniformity would make it harder to track the movement of tectonic plates or determine the age of the seafloor using magnetic stripes. It would also impact our understanding of plate tectonics and Earth's geology.
Can you describe the process that wears down and builds up the earths surface?
weathering, erosion, deposition, and uplift
