Final answer:
When moving away from spreading centers in the middle of the ocean, sediment thickness increases.
Step-by-step explanation:
Moving away from spreading centers in the middle of the ocean, sediment thickness generally increases. This is because spreading centers, also known as mid-ocean ridges, are areas where new oceanic crust is formed through volcanic activity. As magma rises and solidifies at these ridges, it creates relatively young oceanic crust that is often devoid of thick sediment cover.
In contrast, as you move farther away from the spreading centers, the oceanic crust becomes older, and sediments slowly accumulate on top of it over time. These sediments can come from various sources, including marine organisms, weathered rocks from the continents, and volcanic ash. Consequently, the sediment thickness tends to be greater in the areas farther away from the spreading centers. When moving away from spreading centers in the middle of the ocean, sediment thickness increases.
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