The ocean covers about 71 % of the Earth’s surface (NOAA, 2014). This enormous area of water is formed due to some geological processes in the initial stage of the Earth formation. We have to study Earth composition to understand how land masses rose and what the ocean floor is. Some geological processes such as continental draft and plate tectonics can be considered the cause of the formation of the ocean basin and some oceanic features. In task 2, I discuss the effect of climate change is crucial to determine sea levels. In order to protect the marine environment and control, global warming several strategies are addressed and data evaluated.