Quiz: UPPSC Prelims 2023 (GS Paper I)

Category: UP PSC (PCS)

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Question 138 of 150

UPPSC Prelims 2023 (GS Paper I)
92%

Biological Oxygen Demand(BOD) is a standard criteria for -

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Tags: Environment
23 Aug 2025 · 03 Nov 2025

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 2023 (GS Paper I)

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