ocean pollution can decrease the number of phytoplanktons and algae
nonbiodegradable_pollution is pollution. planktonic_algae is phytoplankton. air_pollution is not spewing. water_pollution is not pollution. green_algae is not marine_organism. planktonic_algae is not phytoplankton. nonbiodegradable_pollution is not pollution. pollution_abatement is not decrease. noise_pollution is not pollution. pollution_abatement is decrease.