Which of the following groups of plants produces economically useful fibers?

  • A
    $Gossypium$,$Hibiscus$,$Crotalaria$
  • B
    $Gossypium$,$Cassia$,$Lycopersicum$
  • C
    $Gossypium$,$Brassica$,$Glycine$
  • D
    $Gossypium$,$Agave$,$Nicotiana$

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Match the columns:
Column $I$ Column $II$
$(a)$ The outermost whorl of the flower $(w)$ Corolla
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$(d)$ The innermost whorl of the flower $(z)$ Stamen (Androecium)

Raphides are needle-like crystals of calcium oxalate which are specially found in

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Select the correct match for $X$ and $Y$:
Column $X$Column $Y$
$(1)$ Thalamiflorae$(P)$ Ovary inferior
$(2)$ Inferae$(Q)$ Always two carpels
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