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Which statement describes the Earth's crust?

Which is true about oceanic crust?

Plate Tectonics

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Answers

1
Which is true about oceanic crust?
It is older closer to a MOR
Is oldest midway between a MOR and a continent
There is no relationship between age and location of o crust
It is older farther from a MOR
2
Which statement describes the Earth's crust?
It is the same density throughout
It is thicker under the continents
It is very cold in the deepest parts
It is thicker under the oceans
3
What do magnetic stripes in the ocean floor rocks tell us?
Magnetic poles have reversed throughout history
Gondwanaland was the first supercontinent
New rocks form at subduction zones
Continental landmasses are stationary
4
Which feature is created when 2 continental plates collide?
Trench
Subduction zone
Mountains
Rift Valley
5
A boundary where 2 plates pull apart?
Divergent
Strike-slip
Transform
Convergent
6
What is the driving force behind plate tectonics?
Conduction
Tension
Convection
Gravity
7
What is the Earth's core made out of?
Nickel and Cobalt
Iron and Potassium
Iron and Nickel
Iron and Silicon
8
Which of the following is not a piece of early evidence for continental drift?
puzzle-like fit of continents
magnetic field reversals stored in rocks
fossil evidence
rock evidence
9
Why was Alfred Wegener's idea initially not well accepted by other scientists?
He couldn't explain when the continents drifted
He couldn't explain why the continents drifted
He couldn't explain where the continents were drifting
He couldn't explain which continents were drifting
10
At which of the following locations could subduction be occurring?
transform plate boundaries
convergent plate boundaries
divergent plate boundaries
at MORs