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oceans
| Question | Answer |
|---|---|
| what are curents | cohesive streams of sea water |
| what are currents caused by | gravity wind density |
| what are the two types of currents | surface circulation and deep circulation |
| how many Gyres are there | 5 |
| where are the Gyres located | 2 in pacific, 2 in Atlantic, 1 in indian |
| what are Gyres steered by | continents |
| what are Gyres made of | other currents |
| can tides create a current | yes |
| what is the salinity of the ocean | 35 per thousand |
| what is salinity | the amount of dissolved salt in the ocean |
| the temp of the ocean varies by | the amount of time the sun hits it |
| what effects the density of sea water | temp salinity preasure |
| what is density | how close the water particles are in a certain amount of space |
| Ocean water contains about 96.5 percent by weight | pure water |
| remaining 3.5 percent | chloride sodium sulfate magnesium |
| The drainage of water from continents via the hydrologic cycle plays an important role in | transporting chemicals from the land to the sea |
| does the ocean have layers | yes |
| Freezing point of seawater is | -1.8˚C |
| Used for determining the density of seawater | Salinity |
| Affects the freezing point of seawater | Salinity |
| Affects the temperature of maximum density of seawater | Salinity |
| salinity increases with depth | At high latitudes |
| salinity decreases with depth | At mid and low latitudes |
| hemical composition of the ocean contains | element plus various gases |
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