The sea-floor spreading theory claims that... ( NOTE: There are multiple correct

Question

The sea-floor spreading theory claims that... ( NOTE: There are multiple correct answers. Any incorrect answer you give will cancel a correct one. Only choose the ones you are sure of!) that the continents were always in the current position That the ocean floor is younger closer to mid-ocean ridges and older closer to trench That the rocks of the ocean floor are all normally magnetized that the deepest part of the ocean is in the middle of the ocean that the ocean floor is created by volcanic activity at oceanic ridges That the rocks of the ocean floor are magnetized in an alternating pattern of normal and reverse magnetization O

Explanation / Answer

The sea-floor spreading theory claims that......

That the ocean-floor is younger closer to mid-ocean ridges and older closer to trench. Because ocean floor closer to mid-ocean ridges is the place where new maga generate. So, it is alwayas younger.

That the ocean floor is created by volcanic activity at oceanic ridges. Because magma arise in the oceanic ridges pushes the blocks in opposite direction, creating accumulation space for newly generated magma, and ocean floor is created.

That the rocks of the ocean floor are magnetized in an alternating pattern of normal and reverse magnetization.

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