Explanation: Upper Assam is the heart of Assam's tea industry, known for producing some of the finest Assam Tea in the world. The region's climate, fertile soil, and ample rainfall create perfect conditions for tea cultivation. Key tea-producing districts in Upper Assam: Dibrugarh (known as the "Tea City of India") Tinsukia Jorhat (home to the world’s oldest tea research center, Tocklai Tea Research Institute) Golaghat (location of Assam’s famous Kaziranga Tea Estate) Sivasagar Assam tea is known for its strong flavor, bright color, and malty taste.

Explanation: Majuli district was officially declared as a separate district in 2016, not in 2005. It was earlier a part of Jorhat district before being granted district status.

Explanation: The Shillong Plateau extends into Assam, Meghalaya, and parts of Bangladesh. In Assam, its extensions are seen in areas like Karbi Anglong and Dima Hasao. It is a significant geological feature of the region.

Explanation: The Barak River flows mainly through the Barak Valley region of Assam, which includes the districts of Cachar, Karimganj, and Hailakandi. It originates in Manipur and later enters Bangladesh, where it splits into the Surma and Kushiyara rivers.

Explanation: Bajali was carved out of Barpeta and declared Assam's 34th district on 8 August 2020. In December 2022, Bajali was merged back with Barpeta for administrative reasons. In 2023, Bajali was reinstated as a separate district by the Assam government. Thus, as of 2024, Bajali remains an independent district of Assam.

Explanation: Barpeta is also known as the "Land of Satras", as it is home to several Vaishnavite Satras, including the famous Barpeta Satra, founded by Sri Madhavdeva, the chief disciple of Srimanta Sankardeva. Majuli is also widely associated with Satras and is considered the heartland of Neo-Vaishnavism in Assam. Both districts hold significant cultural and spiritual importance in Assam’s Vaishnavite tradition.