Explanation: Seasonal winds are a type of wind that changes direction with the seasons. The most prominent example of seasonal winds is the monsoon, which is a significant weather pattern in the Indian subcontinent. Monsoons are characterized by a reversal of wind direction between summer and winter, bringing heavy rainfall during the summer months.
The term "monsoon" comes from the Arabic word "mausim," which means "season." Monsoons are driven by the differential heating of land and sea, which causes a seasonal shift in wind patterns. During the summer, the land heats up faster than the sea, creating a low-pressure area over the land and a high-pressure area over the sea. This causes winds to blow from the sea towards the land, bringing moisture and heavy rainfall. In the winter, the opposite occurs, with winds blowing from the land towards the sea, resulting in dry conditions.
Monsoons are particularly important in the Indian subcontinent, where they play a crucial role in agriculture and water supply. The Indian monsoon is one of the most studied and well-understood monsoon systems in the world. It typically starts in June and lasts until September, bringing much-needed rainfall to the region. The reliability and intensity of the monsoon are critical for the agricultural economy of India, as a large portion of the country's farmland depends on monsoon rains for irrigation.
Other options like storms, hurricanes, and thunder are not seasonal winds. Storms and hurricanes are intense weather phenomena that can occur at any time and are not tied to a specific season. Thunder is a sound produced by lightning and is not related to wind patterns at all. Therefore, the correct answer is (B) Monsoon, as it is the only option that accurately describes a seasonal wind pattern.