Seawater salinity can be determined by the amount of common salt (sodium chloride) in ______ of seawater.
A
1 kg
B
10 kg
C
1 g
D
10 g
Correct Option:
A
Explanation
Salinity is commonly expressed as the amount of dissolved salts in a specified mass of seawater, usually grams of salt per kilogram of seawater. Average ocean salinity is about 35 g of dissolved salts per 1 kg of seawater, so 1 kg is the reference mass.
