1) What is a common source of microplastics in oceans? a) Saltwater evaporation b) Coral reef erosion c) Breakdown of larger plastic items d) Oil drilling platforms 2) Which material can take over 400 years to decompose? a) Paper b) PET plastic bottles c) Bioplastic d) Cotton 3) Which of the following is a consequence of plastic pollution? a) Reduced greenhouse gases b) Blocked sunlight to aquatic plants c) Ocean acidification only d) Stronger ocean currents 4) Which country generates the most plastic waste (as of 2020 data) a) United States b) China c) Brazil d) India 5) What does the term "plastic smog" refer to? a) Plastic factories emitting smoke b) Marine cloud pollution c) Melted plastic gases d) Fog with plastic particles

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