निम्नलिखित में से कौन सा महासागरीय कचरा क्षेत्र (ocean garbage patch) दुनिया में प्लास्टिक के मलबे का सबसे बड़ा संचयन माना जाता है?

Which of the following describes the specific size and origin of nanoplastics in the marine environment?

What specific size threshold and origin characterize nanoplastics in the classification of marine plastic pollution?

What is the estimated annual volume of plastic entering the oceans, and what percentage of total marine debris does it represent?

How has the United Nations officially identified the extensive issue of marine plastic pollution?