1. Where would you find the warmest waters? (Points : 1)
surface-mixed zone
transition zone
deep zone
polar zone
2. Which of the following has the most important role regulating global temperatures? (Points : 1)
ocean layering
oceanic currents
oceanic salinity
oceanic chemistry
3. What is the most abundant ion in seawater? (Points : 1)
sulfide
magnesium
chloride
sulfate
4. Which of the following processes adds the most salts to seawater? (Points : 1)
runoff from erosion
precipitation
earthquakes
sea floor spreading
5. Calcium carbonates are incorporated into the shells of microscopic marine plants and animals, and then precipitated into the ocean sediments. What is the term for this process? (Points : 1)
biological precipitation
evaporite deposition
chemical precipitation
sediment deposition
surface-mixed zone
transition zone
deep zone
polar zone
2. Which of the following has the most important role regulating global temperatures? (Points : 1)
ocean layering
oceanic currents
oceanic salinity
oceanic chemistry
3. What is the most abundant ion in seawater? (Points : 1)
sulfide
magnesium
chloride
sulfate
4. Which of the following processes adds the most salts to seawater? (Points : 1)
runoff from erosion
precipitation
earthquakes
sea floor spreading
5. Calcium carbonates are incorporated into the shells of microscopic marine plants and animals, and then precipitated into the ocean sediments. What is the term for this process? (Points : 1)
biological precipitation
evaporite deposition
chemical precipitation
sediment deposition