Question

Match List-I with List-II

List-I	List-II
(A) Hydrograph	(III) Discharge vs time
(B) Mass curve	(I) Cumulative rainfall vs time
(C) Double mass curve	(II) Cumulative rainfall of nearby station vs cumulative rainfall of concerned station
(D) Hyetograph	(IV) Rainfall intensity vs time

Choose the correct answer from the options given below:

• (A) - (III), (B) - (II), (C) - (I), (D) - (IV)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (I), (B) - (III), (C) - (IV), (D) - (II)
• (A) - (III), (B) - (I), (C) - (II), (D) - (IV)

Hint:

A hydrograph represents discharge over time, while a hyetograph represents rainfall intensity over time.

Answer 1

The Correct Option is A

Step 1: Understanding the Graphs.
- (A) Hydrograph: Represents discharge over time, so it corresponds to (III) Discharge vs time.
- (B) Mass curve: Represents cumulative rainfall over time, so it corresponds to (II) Cumulative rainfall of nearby station vs Cumulative rainfall of concerned station.
- (C) Double mass curve: Represents cumulative rainfall in relation to the cumulative rainfall of another station, so it corresponds to (I) Cumulative rainfall vs time.
- (D) Hyetograph: Represents rainfall intensity over time, so it corresponds to (IV) Rainfall intensity vs time.

Step 2: Conclusion.
Thus, the correct matching is: (A) - (III), (B) - (II), (C) - (I), (D) - (IV), making option (1) the correct answer.

Final Answer: \[ \boxed{1. \, (A) - (III), (B) - (II), (C) - (I), (D) - (IV)} \]