the study of ocean.
Ernest Shackleton's main contributions to oceanography were his detailed mapping of previously uncharted areas of the Antarctic region during his expeditions. He also conducted scientific studies on marine biology and ocean currents, providing valuable insights into the ecosystem of the Southern Ocean. Shackleton's expeditions helped lay the groundwork for future oceanographic research in the polar regions.
1) Geology- The study of the Earth 2)Meterology- The study of the Atmosphere, weather, and climate 3)Oceanology- The study of the Oceans 4)Astrononmy- The study of the Universe