Explanation: Meghalaya, a state in northeastern India, is renowned for receiving the highest rainfall in the country. This phenomenon is primarily due to its geographical location and topography. The state is situated in a region that is heavily influenced by the monsoon winds, which bring in moisture from the Bay of Bengal. The mountainous terrain of Meghalaya, with its numerous peaks and valleys, plays a crucial role in enhancing the rainfall. As the moist air rises over the mountains, it cools and condenses, leading to heavy precipitation. This process is known as orographic lifting, which is a significant factor in the high rainfall experienced in Meghalaya.
The state's dense forests also contribute to the high rainfall. The forests act as a natural sponge, absorbing and releasing moisture, which further enhances the rainfall. The combination of these geographical and climatic factors makes Meghalaya one of the wettest places on Earth, with some areas receiving over 11,000 mm of rainfall annually.
In contrast, the other options listed do not receive as much rainfall. Karnataka, located in the southern part of India, experiences a mix of tropical and semi-arid climates, which do not favor the same level of rainfall as Meghalaya. Madhya Pradesh, in central India, has a diverse climate but is not known for high rainfall due to its central location and varied topography. Bihar, in the eastern part of India, does experience significant rainfall during the monsoon season, but it does not match the rainfall levels of Meghalaya.
Understanding the factors that contribute to high rainfall in Meghalaya is essential for comprehending the geographical and climatic conditions of the region. This knowledge is crucial for students studying geography, climate science, and environmental studies, as it provides insights into the complex interactions between topography, climate, and precipitation patterns.