Plant growth regulators(PGRs)are (1) Simple organic substances of different chemical composition (2)Complex organic substances of different chemical composition (3)Simple and complex organic substances o same chemical composition (4)Small organic substances of same chemical composition
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Plant growth regulators(PGRs)are
(1) Simple organic substances of different chemical composition
(2)Complex organic substances of different chemical composition
(3)Simple and complex organic substances o same chemical composition
(4)Small organic substances of same chemical composition ✔✔✔
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Here is ur ansss.....
4)Small organic substances of same chemical composition ✅✅✅✅✅
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