Other questions in this quiz

2. What is the approximate mass of sea salt that is dissolved in seawater?

  • 34 gram of sea salt for every 1L of sea water
  • 34 kilograms of sea salt for every 100 mL of seawater
  • 34 grams of sea salt for every 100 mL of seawater
  • 34 kilograms of sea salt for every 1 litre of seawater

3. Which of the following statements is FALSE?

  • An increase in the turbidity (presence of particles)of seawater, reduces the depth to which sunlight can penetrate
  • Net nutrient removal is seen in the sunlit surface waters where the rate of photosynthesis exceeds the rate of respiration.
  • Measuring chlorophyll concentrations is used to track zooplankton
  • At depths where light to too low, respiration dominates and changes in the concentration of dissolved nutrients is dominated by an increase in their concentration.

4. Which constituent DOES NOT display bio-limiting behaviour in temperate waters during the summer

  • Phosphate
  • Dissolved inorganic carbon dioxide
  • Nitrate
  • Silicate

5. Which of these statements is FALSE?

  • Profiles for scavenged elements show that their concentration decreases with depth.
  • The oldest bottom waters are in the North Pacific and so we should expect them to be most impoverished in dissolved oxygen
  • Only half the elements found in the periodic table are found dissolved in seawater
  • Dissolved oxygen display s non-conservative behaviour in seawater.

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