The question asks for the correct definition of a 'tributary'. Let's analyze the options:
Based on the analysis, the correct definition is that a tributary is a river flowing into a larger river.
Therefore, Option 1 is the correct answer.
Consider the following pairs: Reservoirs/States
1. Ghataprabha – Telangana
2.Gandhi Sagar – Madhya Pradesh
3. Indira Sagar – Andhra Pradesh
4. Maithon – Chhattisgarh
How many pairs given above are not correctly matched?