Answer:
Step-by-step explanation:
Microplastics are found especially in the marine environment they are usually less than about 5 mm in size.
The action of the following contributes independently or maybe collectively to it's formation;
UV radiation, plastic weathering from larger plastic products of cloths and nurdle, transportation, physical stress, fluctuating temperatures, salinity, littering of plastics, production spills, landfill waste choice, chemical formation of microbeads, wave actions...