Question

1- Give the definition of dyes?​

Answer 1

Explanation:

A dye is a colored substance that chemically bonds to the substrate to which it is being applied. This distinguishes dyes from pigments which do not chemically bind to the material they color. ... Dyes are usually soluble in water whereas pigments are insoluble.

Answer 2

$\huge\tt\purple{Eyes→}$

The organ of sight, in vertebrates typically one of a pair of spherical bodies contained in an orbit of the skull and in humans appearing externally as a dense, white, curved membrane, or sclera, surrounding a circular, colored portion, or iris, that is covered by a clear, curved membrane, or cornea, and in the center of which is an opening, or pupil, through which light passes to the retina.

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