If the mid-Atlantic Ocean is spreading at 3.0 cm per year, how many years has it taken for it to reach its present width of about 5000 km ? Express your answer to two significant figures and include the appropriate units. II The value should be entered as a single number or in scientific notation. No credit lost. Try again.
An earthquake that measures magnitude 10 on the scale has how many times more groundshaking effect than a quake that measures magnitude 5? Express your answer using one significant figure. E5E10
If the mid-Atlantic Ocean is spreading at 3.0 cm per year, how many years has it taken for it to reach its present width
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If the mid-Atlantic Ocean is spreading at 3.0 cm per year, how many years has it taken for it to reach its present width
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