Why did the Battle of Buxar prove to be the turning point in the history of the Subcontinent?

The British victory in the battle ensured that there were no significant forces that can challenge the authority of Britishers in the Eastern part of the Sub-continent.

Explanation:

Fought on 22 October 1764, the Battle of Buxar was a turning point in the history of Indian Sub-continent. The British force in this battle was led by Hector Munro against the combined force of Mir Qasim, the Nawab of Awadh and Shah Alam II, the Mughal Emperor. The Britishers emerged victorious in the battle by defeating Mughal forces.

This battle came to an end by the Treaty of Allahabad (1765) but the victory of Britishers ensured that there were no forces to challenge Britishers in the Eastern Part of the sub-continent.

what are local authorities doing to fix the problem

explanation:

answer; /// i believe that the correct answer is (d)the huang he river valley;