Question

ranjak kriya kya hoti hai

Answer 1

This question translates to "what is the pigment action?" and I believe that means "what is the action of pigment?" or "what does pigment do"? A pigment is what is responsible for the color of something. There are also pigments you can use to change the color of a certain item.

Answer 2

$\tt\huge\purple{hello!!!}$

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रंजक क्रिया किसी भी चीज़ के रन्ग के लिए जिम्मेदार होती है।