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Composition of ocean
Questions about the composition of the ocean
|What is salinity?
|Salinity is the amount of salt found in 1,000 grams of water. It is used to measure ocean salinity.
|Why are oceans salty and not freshwater?
|Because water evaporates, and the salt gets left behind. Over time, so much salt is left it becomes noticeable that there is a salty taste.
|What is brackish water and where can you find it?
|Brackish water is a mix of salt water and fresh water, found where the two meet.
|What is the ocean zone that no sunlight at all goes through?
|The deep zone, where most fish make their own light (bio luminescence).
|What are the four criteria that scientists use to classify ocean zones?
|The four are: temperature, salinity, density, and the amount of sunlight it gets.
|What are the three basic zones in an ocean?
|The Surface zone, the Middle zone, and the Deep zone.
|There are mountain ranges underwater like there are on land. What are these called?
|What are the three regions that water can be put under?
|Tropical regions, Temperate regions, and Polar regions.