Question

what are root hairs? From ncert 9​

Answer 1

A root hair is the rhizoid of a vascular plant, is a tubular outgrowth of a trichoblast, a hair-forming cell on the epidermis of a plant root. 

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Answer 2

Answer:

Root hairs mean by the root which plant have in soil as it roots have many branches we can say deep within soil so they are root hairs