Solved by a verified expert:I need help with the investigation manual 6b:Density-Driven Circulation and Water MassesQuestion 1At a depth of 50 m, the temperature was about ____________ °C.14.616.017.51 points Question 2The salinity at 50 m was __________ .35.335.736.01 points Question 3The temperature and salinity values at a depth of 475 m were about __________ , respectively.11.1 °C and 35.5513.5 °C and 35.2514.2 °C and 35.451 points Question 4At 970 m, the temperature and salinity were about ___________ , respectively.8.5 C and 35.49.7 C and 35.2510.5 C and 35.951 points Question 5The 1940 m temperature and salinity values were about __________, respectively.5.1 C and 35.24.0 C and 36.43.8 C and 35.01 points Question 6According to the T-S diagram, the density of the 50m seawater sample you plotted is approximately _________ g/cm3.1.02631.02701.02741 points Question 7Based on the positions of the different water samples you plotted on the T-S diagram relative to the isopycnals, seawater density at this site __________ with increasing depth.increaseddecreased1 points Question 8The water conditions at 475 m fell near the ranges of temperature and salinity identified as a(n) _________ mass.NACSWMIWNADWAAIWAABW1 points Question 9The water conditions at 970 m fell within the ranges of temperature and salinity identified as a(n) __________ mass.NACSWMIW NADWAAIWAABW1 points Question 10The water conditions at 1940 m fell near the ranges of temperature and salinity identified as a(n) ___________ mass.NACSWMIWNADWAAIWAABW1 points Question 11This is the origin of the _________ sample that you have identified.North Atlantic Deep WaterMediterranean Intermediate Water1 points Question 12Does your identification of the sample determined by use of the T-S diagram conform to the printed identification of these depths in Figure 5?yesno1 points Question 13At this speed, to travel the approximately 9000 km distance from its Antarctic source area to 40 degrees N would take a density-driven AABW current close to __________ years.1101001,00010,0001 points Question 14A major mechanism whereby the density of surface waters at high latitudes is increased is by __________ .coolingheating1 points Question 15The density of surface water at any latitude can be increased by _______ .more evaporation than precipitationmore precipitation than evaporation1 points Question 16The ________ map displays what appears to be a plume of higher salinity water extending into the Atlantic from the Strait of Gibraltar.300 m1000 m1 points Question 17Based on the reddest portion of the high salinity plume, it appears that from its entry point to the Atlantic the MIW water tends to flow most strongly to the _______ .left and lower latitudesright and higher latitudes1 points Question 18The map shows that the highest sea surface salinity values occur in the _________ portion of the Mediterranean Sea.easternwestern1 points Question 19The salinity of the surface water changes because the rate of evaporation from the sea surface is _________ the addition of fresh water through the combination of precipitation and runoff from land.less thanequal togreater than1 points Question 20Hence, the total input of water from all sources into the Mediterranean must ___________ the total output of water.be greater thanequalbe less than