The vertical (depth) profiles for three parameters P1, P2, and P3 in the northern Indian Ocean are given in the figure below. The values along the x-axis are the normalized values of the parameters and y-axis is the depth (m).
Identify the parameters P1, P2, and P3 from the options given below.
The vertical (depth) profiles for three parameters P1, P2, and P3 in the northern Indian Ocean are given in the figure below. The values along the x-axis are the normalized values of the parameters and y-axis is the depth (m).
Identify the parameters P1, P2, and P3 from the options given below.
Show Hint
- P1: Dissolved Oxygen; P2: Nitrate; P3: Chlorophyll
- P1: Nitrate; P2: Chlorophyll; P3: Dissolved Oxygen
- P1: Dissolved Oxygen; P2: Chlorophyll; P3: Nitrate
- P1: Chlorophyll; P2: Nitrate; P3: Dissolved Oxygen
The Correct Option is B
Solution and Explanation
1. Profile P1 (Nitrate):
The nitrate profile typically decreases with depth. Nitrate is generally present in higher concentrations near the surface where upwelling and nutrient mixing occur. As we go deeper into the ocean, nitrate concentrations tend to decrease. This matches the profile shown in the first graph.
2. Profile P2 (Chlorophyll):
The chlorophyll concentration is typically highest at the surface due to photosynthesis and decreases with depth. The second profile shows a high concentration near the surface, which decreases with depth, matching the typical chlorophyll distribution in the ocean.
3. *rofile P3 (Dissolved Oxygen):
Dissolved oxygen concentrations generally decrease with depth because oxygen is consumed by organisms in the water. However, in the deeper waters, the concentration can increase again due to mixing from deeper ocean currents. The third profile shows this trend, with lower concentrations at the surface and deeper layers having a relatively higher concentration.
Thus, the correct order of the parameters is (B) P1: Nitrate; P2: Chlorophyll; P3: Dissolved Oxygen.
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