Riddle

I lie in the earth, and under the ground; A map may reveal me for journey's abound; I can be found in squares, to reduce down to size; Or at the end of a strand, where attachment lies. What am I?

Choose an answer

A.Veins
B.Tunnels
C.Pipes
D.Roots.
Hint: It's a word with 5 letters, starting with "R".

Answer

Roots.

Why this is the answer

Roots grow underground, can appear on certain diagrams, exist in mathematical "square roots," and anchor the end of a hair strand.

This riddle is filed under How, What, Why Riddles and rated Hard.