Ocean Notes

  Three characteristics of the ocean are the oceans are 1/4000 of the Earth's mass, 1/8000 of the Earth's volume and 97% of  the Earth's water is salt water. The three features of the ocean floor are trenches, Mid-Ocean ridge and Abyssal Planes. The three types of sediment are biogenic, lithogenic, and hydrogenic.  The chemical composition of the ocean is 30.6% sodium, 7.7% magnesium, 3.7% sulfate, 1.2% calcium, 1.1% Potassium, 55% Chlorine and 0.7% other. The two different zones of the ocean are Pelagic and Benthic. The ocean's resources include food like fish, shellfish and seaweed. They also include electricity and transportation. There are two types of ocean currents, surface and deep currents. Wind, gravity and refraction are factors that cause ocean waves.