General Knowledge MCQ #2807

Density is lowest at the surface, where the water is warmest. As depth increases, there is

General Knowledge MCQ #2807

  1. Question 1

    Q1. Density is lowest at the surface, where the water is warmest. As depth increases, there is

    • A) region of rapidly increasing density with increasing depth, which is called the: Pressure
    • B) Phytoplankton
    • C) Pycnocline
    • D) Salinity

    Answer: Pycnocline

    Explanation: A pycnocline is the layer in the ocean where water density increases rapidly with depth, caused by changes in both temperature (thermocline) and salinity (halocline), acting as a barrier to vertical mixing.