Rocks become magnetic when iron particles within the rock align with Earth's magnetic field. This typically occurs when the rocks cool down from a molten state or when they are solidified in the presence of a magnetic field.
Rocks become magnetic when(1 point) Responses Earth's magnetic field reverses direction. Earth's magnetic field reverses direction. iron particles within the rock align with Earth's magnetic field. iron particles within the rock align with Earth's magnetic field. continents move. continents move. rocks are heated to extreme temperatures.
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