Mechanism Of Indian Monsoon

**Statement 1 is Incorrect:** The IOD phenomenon is characterised by a difference in sea surface temperature between the tropical Western Indian Ocean and the tropical Eastern Indian Ocean, not the Eastern Pacific Ocean. During a positive IOD, the western Indian Ocean is warmer than the eastern Indian Ocean, and vice versa for a negative IOD.  **Statement 2 is Correct:** The IOD phenomenon can indeed influence El Nio's impact on the Indian monsoon. El Nio itself is a climate pattern in the Pacific Ocean, but it can interact with the IOD. Depending on the phases of both phenomena (positive/negative IOD and El Nino/La Nina), the overall impact on the Indian monsoon rainfall can be amplified or weakened. Hence, option B is the correct answer.