Step 1: Understanding the Concept:
Reservoirs and dams are constructed across major rivers, altering the riverine ecosystem and creating vast inland water bodies.
Understanding the geographic and riverine distribution of these reservoirs is fundamental to reservoir fisheries management in India.
Step 2: Detailed Explanation:
Let us systematically match each reservoir or dam with its parent river system:
Idukki Reservoir, famous for its double-curvature arch dam, is constructed across the Periyar River in Kerala.
Therefore, (A) matches with (II).
Nagarjuna Sagar Dam, one of the earliest multi-purpose irrigation and hydro-electric projects, is built across the Krishna River on the border of Andhra Pradesh and Telangana.
Therefore, (B) matches with (III).
Jayakwadi Dam, which supports a rich habitat for aquatic flora and fauna, is located on the Godavari River in Maharashtra.
Therefore, (C) matches with (IV).
Pong Dam (also known as Beas Dam) is an earth-fill embankment dam constructed across the Beas River in Himachal Pradesh.
Therefore, (D) matches with (I).
Combining these pairs, we get the sequence: (A)-(II), (B)-(III), (C)-(IV), (D)-(I).
This matches with Option 4 in the question paper.
Step 3: Final Answer:
The correct matching sequence is (A) - (II), (B) - (III), (C) - (IV), (D) - (I).