Question

Write a letter to your friend in another school telling her how you have enjoyed your holiday

Answer 1

Answer:

hope this will help uh..please mark me as brainliest.

Answer 2

Answer:

Uses. One can find its uses in hair dyeing, dyeing of suturing materials and for oxygen absorption in gas analysis. It also has antiseptic properties. Pyrogallol was also used as a developing agent in black-and-white developers, but its use is largely historical