The salinity of seawater is determined by measuring the amount of ...

[segrsyd]

The salinity of seawater is determined by measuring the amount of chloride ion. Why?
 
  a) Chloride ion is part of the salt crystal.
  b) Chloride must ionic bond to sodium.
  c) Chloride is in every salt molecule in seawater.
  d) Chloride ion is the most abundant ion in seawater and gives a more accurate result.

Question 2

Given what you know about surface productivity, where do you think that sunlight penetrates deepest into the ocean?
 
  a) Coastal waters on the west coast of North America
  b) Lagoons in the South Pacific
  c) In the open ocean
  d) Along the equator
  e) Surrounding Antarctica

[jjorrostieta]

Answer to Question 1

D

Answer to Question 2

C

[segrsyd]

Thanks for the timely response, appreciate it

[scikid]

Great answer, keep it coming