Discuss Forum

1. এক অণু CFC গ্যাস কত অণু ওজনকে ধ্বংস করে?

  • A. 20
  • B. 20
  • C. 20
  • D. 20

Answer: Option D

Explanation:

Post your comments here:

Name:
Mobile:
Email:(Optional)

» Your comments will be displayed only after manual approval.