Which of the following statements is incorrec | vedclass

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(D) The statement 'Nowadays,the use of pesticides is mainly natural' is incorrect. In modern agriculture,the use of synthetic chemical pesticides is w

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Nowadays,the use of pesticides is mainly natural.

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(D) The statement 'Nowadays,the use of pesticides is mainly natural' is incorrect. In modern agriculture,the use of synthetic chemical pesticides is widespread,which often leads to environmental pollution and health hazards. While there is a growing trend towards organic farming and biopesticides,it is not yet the primary or 'natural' method used globally. Biofertilizers (Option $A$) are indeed used to enrich soil nutrients,chemical fertilizers (Option $B$) are known pollutants,and chemical fertilizers (Option $C$) are generally more expensive than organic alternatives.

Column-$I$	Column-$II$
$(a)$ Azospirillum	$(1)$ Symbiotic bacteria
$(b)$ Cyanobacteria	$(2)$ Free-living bacteria
$(c)$ Rhizobium	$(3)$ Mycorrhiza
$(d)$ Glomus	$(4)$ Autotrophic microbe

Which of the following statements is incorrect?

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The Neem tree has acquired industrial importance as a source of:

Azolla enriches rice fields with nitrogen due to its association with

Match the following columns:

Column-$I$ Column-$II$

$(a)$ Azospirillum $(1)$ Symbiotic bacteria

$(b)$ Cyanobacteria $(2)$ Free-living bacteria

$(c)$ Rhizobium $(3)$ Mycorrhiza

$(d)$ Glomus $(4)$ Autotrophic microbe

Which of the following symbiotic associations is not useful as a biofertilizer?

Which of the following is the pair of biofertilizers?

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