From which part of the $Cinchona$ plant is quinine obtained?

Bengal gram or chickpea is obtained from which genus?

Vegetable crop cultivation is known as

Match Column-$I$ with Column-$II$:
Column-$I$ (Forest Type) | Column-$II$ (Dominant Tree Species)
$(I)$ Tropical Rain Forests | $(a)$ $Shorea robusta$
$(II)$ Tropical Deciduous Forests | $(b)$ $Quercus$
$(III)$ Temperate Broad-leaf Forests | $(c)$ $Cedrus deodara$
$(IV)$ Temperate Coniferous Forests | $(d)$ $Dipterocarpus$

Cotton fibres are derived from

The plant which is used as a source of spice as well as dye is