Marine sciences is the study of the ocean and its ecosystems. This field encompasses various disciplines, including oceanography, marine biology, and marine geology. Researchers in marine sciences explore the physical, chemical, and biological processes that occur in marine environments, helping us understand the ocean's role in the Earth's climate and weather patterns. Marine scientists also investigate the diverse life forms found in the ocean, from tiny plankton to large mammals like whales. Their work is crucial for conservation efforts, sustainable fishing practices, and understanding the impacts of human activities, such as pollution and climate change, on marine ecosystems.