Q. 95.0( 3 Votes )

Which of the following plants is used to extract the blue dye?
A. Trifolium

B. Indigofera

C. Lupin

D. Cassia

Answer :

Indigofera


Explanation:


The blue dye is extracted from Indigofera.


The Cassia is a shrub used as an ornamental plant.


Lupin is also an ornamental plant.


Trifolium is used as fodder.

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