The Douro is the largest river of the Iberian Peninsula by discharge. The Douro flows into the Atlantic Ocean at Porto, the second largest city of Portugal. (Wikipedia, 2024. Douro. https://en.wikipedia.org/wiki/Douro)
Chemical Oceanography studies ocean chemistry. Chemical oceanography can be further divided into marine chemistry and marine geochemistry. Ocean chemistry provides a window into the origin and evolution of marine life, chemical mass balance, ocean sediments, and climate. (Adapted from Anja H (2021) Difference between Marine Biology Versus Biological
Oceanography. J Marine Sci Res Dev 11: 325. DOI: 10.4172/2155-9910.1000325)
