- The deep sea is ______ from the ______ zone and has __________ except for the______ that occurs at _______. Food is therefore a _____resource, originating primarily from ______ that _____ through the deep sea.
- Except in the ______ limits of the ______zone, __ light penetrates into the ____. This lightless area is called the __________. _________ is relatively ______below the first few hundred meters.
- The greatest and most rapid changes in temperature occur where the ______ meet the _______ (the __________) and where _____ emit ____water. _____ vary in _____ and are strongest in the _____. __________ vents emit water as high as ____ oC
- The deep sea is the part of the marine environment that lies below the level of __________ for phytoplankton photosynthesis in the open ocean and deeper than the depth of the continental shelves (>200m).
- Abyssalpelagic: _____ m to _____ m, overlying the ____ of the major ocean _____ (benthic zone is the abyssal zone)
- epipelagic: __ to __ m in depth, this the __________ zone (lighted)
- mesopelagic: _____- _____ m in depth, lower boundary in the tropics is the ____ degree C _____
- What is the average salinity of the ocean?
- When the surface ocean water temperatures and salinity change, the density changes forming what?
- Deep ocean water ____________ to replace water moving away on the surface
- The sinking of dense water and the rising of less dense water
- What happens to salinity of ocean water if addition of fresh water
- Currents generally flow in the same directions as the
- Surface winds that cause surface currents to transfer energy to the ocean water are called
- Winds and water from the North Pole deflect in a what direction?
- Deep ocean currents carry ______________ , dense water away from the poles toward the equator
- Surface winds cause surface current by transferring what to the ocean water?
- Convection Currents take place all over Earth's oceans to form what?
- Pressure difference in the atmosphere causes
- what kind of energy can warm ocean water