Menu
Home / General Knowledge / General Science :: Discussion

Discussion :: General Science

  1. Which metal pollute the air of a big city?

    2. A.

     Copper
    B.

     Chromium
    C.

     Lead
    D.

     Cadmium

    View Answer

    Workspace

    View Answer

    Answer : Option C

    Explanation :

    Lead.

Write your comments here:

Be The First To Comment