16. How do microplastics found on the ocean floor end up in people's bodies?
A. Coral reefs fail to break down the microplastics, and they end up back on beaches.
B. Humans eat sea salt containing the microplastic.
C. Humans scuba dive in areas where microplastics are visible.
D. Acid rain reacts with plastics on the ocean floor and releases them into the air.