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Ocean Composition
Question | Answer |
---|---|
What are two sources of water for Earth's oceans? | Water vapor expelled from volcanoes that condensed and precipitated and melted ice from comets and asteroids |
What is the largest and deepest ocean? | The Pacific |
Which two oceans are partly covered with sea ice? | The Southern and the Arctic |
How does the water in Earth's oceans become salty? | Through surface runoff that forms salts. Rivers and streams carried these substances to the oceans |
What is salinity? | The measure of the mass of dissolved solids in a mass of water |
What are the resources found either on our beneath the ocean floor? | Energy resources- ex:oil, natural gas, methane hydrates Minerals- ex: manganese nodules, gold, zinc |
What are the three regions in the Continental margins? | Continental shelf, continental slope, continental rise |
What are the four criteria scientists use when classifying ocean zones? | Amount of sunlight, salinity, density, and temperature |