Questions with the keyword 'pollution'

• what do you think are the main causes of polution? (top 3) by McDonald_drive_thru_worke to Aileen, Christopher, Stephanie Comments: (No comments so far )
• I have a question: The Arctic ice is melting but the Antarctic ice isn’t… is this caused by climate change, pollution by Faye to Stephen, Stephanie, Rehemat, Christopher, Caroline, Aileen Comments: (No comments so far )