Which of the following substances is commonly used as a herbicide?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Biology Mcqsbiology-mcqs
Published
11 May 2018
Last updated
28 May 2026

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Choose the correct answer

Explanation

Among these options, 2,4-D is widely recognized as a herbicide used to control unwanted plants, whereas IAA and NAA are plant growth regulators, and GA is a hormone that promotes growth.

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