(A) Carbon
(B) Charcoal
(C) Sulphur
(D) Potassium nitrate
(A) Carbon
(B) Charcoal
(C) Sulphur
(D) Potassium nitrate
| Share this... |
Facebook
|
Twitter
|
Linkedin
|
Whatsapp
|
Your email address will not be published. Required fields are marked *