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10 Cards in this Set
- Front
- Back
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What percentage of deep ocean floor occupies the Earth's surface? |
30% |
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What is an abyssal plain? |
Immense area of exceedingly flat ocean bottom, and are among the flattest places on Earth's surface; they are covered in thick deposits of sediments that have been eroded from nearby continents |
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What is a mid-ocean ridge? |
Diverging plate boundaries where new ocean crust is being made |
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List the three different types of plate boundaries, their movement, and where they can be found |
Diverging - move away from one another - Mid-Atlantic Ridge Converging - get close to one another - Challenger Deep Transform - slide parallel to one another - San Andreas Fault |
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What is a hydro-thermal vent? |
Fissure on the sea floor that leaks scalding, acidic water that supports a wide variety of organisms |
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Where are hydro-thermal vents located? |
Along mid-ocean ridges, especially the Mid-Atlantic Ridge |
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Life forms living around these vents must be able to survive the harsh combination of which four occurrences? |
Pressure, darkness (no light after 600 feet), high temps (400 degrees Celsius), and toxic chemicals (hydrogen sulfide) |
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Photosynthesis formula |
CO2 + H2O > C6H12O6 + O2 |
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Chemosynthesis formula |
6CO2 + 6H2O + 3H2S > C6H12O6 + 3H2SO4
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What do bacteria make from hydrogen sulfide? |
Glucose |
