How can plastics in the ocean impact human health? (3 points) Plastics in the ocean have no impact on human health, as the plastics only impact ocean organisms. Plastics in the ocean are harmful to ocean organisms but are generally not harmful to human health. Plastics in the ocean are not harmful to the ocean or ocean organisms, so there would be no impact on human health. Plastics in the ocean are harmful to ocean organisms and human health when people consume ocean organisms.