What is the relationship between seafloor spreading and reversals in the Earth's magnetic field?
What will be an ideal response?
As seafloor spreads, magma emerges at the surface and magnetic particles in the lava orient with the magnetic field in force at the time. Over time, a magnetic record is preserve in the seafloor. Using isotopic methods, a chronology of these reversals can be established.
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Although organic farming originated in Europe, today, virtually all organic farms are in the U.S
Indicate whether the statement is true or false.
The average channel velocity increases downstream where the gradient is lower. Indicate whether the statement is true or false
The burners on an electric stove convert
A) electricity into heat, which cooks the food. B) heat into electricity, which cooks the food. C) matter into heat to generate electricity, which transforms the matter in food into energy. D) matter into electricity that generates heat, which transforms the energy in food into matter.
Although carbonate rocks most often interact with carbonic acid, the following substance has also been found to sometimes play a role in rock dissolution?
A) Nitric acid B) Dolomite C) Radioactive uranium D) Radon E) Sulfuric acid