Explanation: Kerala, a state in southern India, is divided into 14 districts, each with its own unique characteristics and geographical features. Understanding the relative sizes of these districts is important for various competitive examinations and general geographical knowledge.
Alappuzha, also known as Alleppey, is the smallest district in Kerala by area. It covers an area of approximately 1,414 square kilometers. The district is known for its backwaters, coir industry, and tourism. Its small size does not diminish its importance; rather, it is a significant contributor to Kerala's economy and culture.
Pathanamthitta, another district in Kerala, is larger than Alappuzha, covering an area of approximately 1,585 square kilometers. It is known for its religious significance, particularly the Sabarimala temple, which attracts millions of pilgrims annually.
Kottayam, with an area of approximately 1,687 square kilometers, is larger than both Alappuzha and Pathanamthitta. It is known for its high literacy rate and is often referred to as the "Land of Letters" due to its contributions to literature and education.
Idukki, the largest among the given options, covers an area of approximately 2,340 square kilometers. It is known for its natural beauty, including the Idukki Dam, and is a major tourist destination.
In summary, Alappuzha is the smallest district in Kerala by area, making it the correct answer to the question. Understanding the geographical layout and sizes of these districts is crucial for students preparing for competitive examinations and for those interested in the geography of Kerala.