Question 1
The proportion of dissolved substances in seawater is expressed as 0/00, which is the same as ________.
◦ parts per hundred
◦ parts per million
◦ parts per thousand
◦ parts per billion
Question 2
The most abundant salt in seawater is ________.
◦ SiO
2◦ NaCl
◦ KCl
◦ MgCl
2