In the eighth paragraph, the writer uses two consecutive subordinate clauses starting with "where" (lines 29-30) to
create a sense of urgency about the plight of beaches affected by plastic pollution
highlight the large amount of plastic pollution that floods the oceans annually
emphasize the compounded negative effects of dumping plastic into the ocean
invoke sympathy for the researchers attempting to mitigate the amount of plastic in the ocean
suggest unintended consequences for humans when plastic returns to shore