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ConcepTest: Spreading Rate of Spreading Center part of Examples
Scientists collect rock samples of the oceanic crust from a location that is 10 km from a spreading center. (1 km = 1000 m; 1 m = 100 cm; 1 cm = 10 mm.) The sampled rocks were found to be 200,000 years old. What ...

ConcepTest: Magnetic Inclination part of Examples
The diagram below shows the magnetic inclination determined for three lava flows preserved in a cliff. (Assume that Earth's magnetic field was in the same orientation as it is today.) What happened to the ...

ConcepTest: Magnetic Inclination in Lava part of Examples
Two lava flows formed at the same location on a plate, 90 million years apart. The plate migrated 500 km northward in the time between the formation of the first and second lava flows. Scientists sampled rocks from ...

ConcepTest: Changing Magnetic Inclination part of Examples
The location of the magnetic North Pole migrated slowly northward over the last century. Assuming that you live in North America, how did magnetic inclination readings of your city change between 1904 and 2004? a. ...

ConcepTest: Magnetism Across Oceanic Ridge part of Examples
The figure below represents a magnetic profile across an oceanic ridge system. The profile is a plot of (A) distance from the oceanic ridge vs. (B) _________. a. magnetic declination b. magnetic intensity c. ...

ConcepTest: Magnetic Polarity at Oceanic Ridge #1 part of Examples
The figure below represents a magnetic profile across an oceanic ridge system. Which pairs of letters indicate matching intervals of reverse polarity. a. A, H b. B, G c. C, F c. G, H

ConcepTest: Axis of Ridge part of Examples
This is part of a magnetic profile across an oceanic ridge system. The profile shows both positive and negative anomalies. Based on the symmetry of the patterns, where is the axis of the ridge located? a. A b. B c. ...

ConcepTest: Mantle Convection part of Examples
Which of the schematic diagrams below best represents mantle convection associated with plate tectonics? a. b. c. d. e.

ConcepTest: Linear Mountain Range part of Examples
In exploring a new planet, you discover a long, linear mountain range crossing a broad low-lying area that is interpreted to represent an ancient basin. Predict what type of plate tectonic feature this represents. ...

ConcepTest: Trough part of Examples
In exploring a new planet, you discover a long, linear trough that separates a low lying region and an upland region. Predict what type of plate tectonic feature this represents. a. subduction zone b. ...



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