Option 1: Convectional rainfall occurs when the Earth`s surface heats up and warms the air above it. This warm air then rises and cools, forming clouds and eventually causing rainfall. However, in the case of India`s monsoon rainfall, convectional rainfall is not the primary type. So, option 1 is not the correct statement.
Option 2: Cyclonic rainfall is caused by the interaction of low-pressure systems and the movement of air masses. It occurs when moist air is pushed upward by a cyclone, leading to the formation of clouds and rainfall. While cyclonic systems do play a role in the monsoon season, they are not the main cause of rainfall in India. Therefore, option 2 is not the correct statement.
Option 3: This statement suggests that both convectional and cyclonic rainfall contribute to India`s monsoon season. As mentioned before, while both types of rainfall occur during this period, they are not the primary contributors. Hence, option 3 is not the correct statement.
Option 4: Orographic rainfall occurs when moist air is forced to climb over a mountain range, leading to the formation of clouds and precipitation. This type of rainfall is more relevant to regions with prominent mountain ranges, such as the