Sure! Here's a paragraph about Sunamganj suitable for students from Class 1 to 12. The complexity and details of the paragraph increase with each class level.

Class 1: Sunamganj is a district located in Bangladesh. It has beautiful rivers and green fields. Many people live there and they are very friendly.

Class 2: Sunamganj is a district in the Sylhet Division of Bangladesh. It is known for its scenic beauty and natural resources. The district is surrounded by rivers like the Surma, Jadukata, and Kushiyara. People in Sunamganj engage in farming and fishing.

Class 3: Sunamganj, a district in the northeastern part of Bangladesh, is blessed with abundant natural resources. It is located in the Sylhet Division and is surrounded by the Surma, Jadukata, and Kushiyara rivers. The district has a diverse ecosystem, with lush green fields, wetlands, and numerous haors (water bodies). People in Sunamganj are primarily engaged in agriculture, fishing, and rearing livestock.

Class 4: Sunamganj, situated in the northeastern region of Bangladesh, is a district renowned for its natural beauty. It is bordered by the Surma, Jadukata, and Kushiyara rivers, which not only enhance its picturesque landscape but also provide a means of livelihood for the local people through fishing and transportation. Sunamganj is also known for its haors, vast wetlands that serve as habitats for a variety of migratory birds. Agriculture is the primary occupation, with crops like paddy, jute, and vegetables being cultivated in the fertile lands.

Class 5: Sunamganj, located in the Sylhet Division of Bangladesh, is a district characterized by its rich biodiversity and cultural heritage. The district is home to several haors, including the Tanguar Haor, which is a Ramsar site and a sanctuary for migratory birds. Sunamganj is known for its traditional handloom industry, producing fine-quality textiles. The Surma River, flowing through the district, not only adds to its natural beauty but also serves as a major transportation route for goods and people.

Class 6: Sunamganj, situated in the northeastern part of Bangladesh, is a district encompassing diverse geographical features and cultural heritage. The district boasts mesmerizing haors like Tanguar Haor, Hail Haor, and Barochhara Haor, which not only attract migratory birds but also contribute to the local economy through fishing and tourism. Sunamganj is also renowned for its traditional crafts, including handloom weaving and bamboo crafts. The district celebrates various cultural festivals, such as Baishakhi Mela and Rash Mela, which showcase the vibrant traditions and customs of the local communities.

Class 7: Sunamganj, a district in the Sylhet Division of Bangladesh, is a land of scenic beauty and cultural significance. Its vast haors, such as Tanguar Haor, Hail Haor, and Barochhara Haor, form an integral part of the ecosystem and support a wide array of flora and fauna. The district is also known for its traditional crafts, including cane and bamboo works, pottery, and handloom weaving. Sunamganj has a rich cultural heritage, and its people celebrate various festivals, such as Baishakhi Mela, Rash Mela, and Dol Purnima, with great enthusiasm.

Class 8: Sunamganj, located in the northeastern region of Bangladesh, is a district blessed with natural wonders and cultural treasures. The district's haors, wetlands, and rivers create a unique ecosystem and provide habitats for a diverse range of wildlife. Tanguar Haor, a UNESCO Biosphere Reserve, is a sanctuary for migratory birds and serves as a vital fish breeding ground. Sunamganj is also famous for its traditional crafts, including Shital Pati (a type of mat made from a special type of cane), terracotta pottery, and handwoven textiles. The district's vibrant festivals, such as Baishakhi Mela and Rash Mela, showcase the region's rich heritage and cultural diversity.

Class 9-12: Sunamganj, situated in the northeastern part of Bangladesh, is a district known for its breathtaking natural landscapes, ecological significance, and cultural heritage. It encompasses numerous haors, including the renowned Tanguar Haor, which is recognized as a Ramsar site, Biosphere Reserve, and Important Bird Area. These wetlands not only support a diverse range of flora and fauna but also sustain the livelihoods of local communities through fishing and agriculture. Sunamganj is also famous for its traditional crafts, such as Shital Pati, a delicate handwoven mat, and terracotta pottery, which exhibit the artistic skills of the local artisans. The district celebrates various festivals throughout the year, including Baishakhi Mela, Rash Mela, Dol Purnima, and Boishakh Utsab, providing a glimpse into the region's vibrant cultural heritage.