Question

Q. Which of the following is/are the controlling factors of density of seawater?

Select the correct answer from the codes given below:

• A.
  1 only
• B.
  1 and 2
• C.
  2 and 3
• D.
  1, 2 and 3

Answer 1

The correct option is D

1, 2 and 3
Explanation:

Temperature is directly related to thermal expansion which controls the density of the water. Temp increases-density decreases and vice versa. Pressure has compressive effects which affect the density of water: pressure increases-density increases and vice versa. Salinity adds dissolved substances which determines the density of the water: salinity increases- density increases and vice versa.