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.
Upwelling.svg Auftrieb von Tiefenwasser Upwelling File Upwelling File Upwelling Lichtspiel Saturday th June Image Upwellinglabelsen svg Labels version English Upwelling
Page 2023 Free-images.com. All images are Public Domain