This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Aguas del lago de Maracaibo contaminadas por Lemna . Aguas del lago de Maracaibo en Venezuela contaminadas por Lemna minor Shoreline of Lake Maracaibo Venezuela contaminated by Lemna minor duckweed due to nutrient pollution own User The Photographer Own work copyleft Multi with GFDL and Creative Commons CCBYSA and older versions