SSC General Science & Technology Sample Paper NCERT Sample Paper-7

  • question_answer
    Cochineal of insects have been proved very useful for

    A)  Weeds control    

    B)          Parthenium control

    C)  Cactus prevention        

    D)  Eicchomia prevention

    Correct Answer: C

    Solution :

    [c] Cochineal is a dye extracted from the bodies of minute scale-insect (Oactylopiuscoccus), which feeds on Cactus plant. It is the best method of biological control, used effectively in India and America.

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