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| the gradually sloping end of a continent that extends under the ocean |
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· A steep V-shaped trench along or across a continental shelf or deep ocean floor. |
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| flat seafloor areas created by the deposition of sediment into valleys |
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| are underwater, inactive volcano peaks |
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| A flat-topped seamount that forms when waves erodes a wave-cut platform across the top of an extinct volcano that later sinks below the surface of the ocean. |
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| the area in an ocean basin where new ocean is formed. |
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| a deep valley portion of a mid-ocean ridge |
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| a long, narrow, steep-sided depression where one crustal plate sinks beneath another. |
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Continental Shelf Deposits |
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| petroleum and natural gas from organic deposits; fertilizer, limestone, sand, gravel |
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| from dense mineral material from rivers |
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· heavy mineral deposits come from around cracks
· Manganese nodules
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| has enough light for plants to carry out photosynthesis, so food is more abundant, and most of marine life is found there |
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| has very little light, and plants cannot grow. Animals living there feed on the rain of dead organic matter from above |
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| entirely dark;The temperature is freezing and the pressure is immense |
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| marine plants & algae use energy from the Sun to make food. |
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| organisms that undergo photosynthesis make their own food |
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| organisms that feed on producers |
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| Energy is passed from one organism to another organism |
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| Complex feeding system of overlapping food chains |
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| the process of using sulfur or nitrogen compounds as energy to produce food |
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| marine organisms that drift with the current |
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| animals that actively swim rather than drift in the current |
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| plants and animals living on or in the seafloor |
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| dwelling organisms are adapted to a constantly changing environment; live in the sand |
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| Tide pools form; areas contain food and provide protection |
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| provide a lower salt environment with many nutrients |
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