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True or false places where rivers pour fresh water into the ocean have low salinity?
Salinity is a measure of how salty water is. Ocean water is more salty in some places than in others. The answer is yes, places where rivers pour fresh water into the ocean have low salinity because fresh water is normally cold and in warm areas, ocean water evaporates quicker. When this happens, salt is left behind and the ocean water has a higher salinity.
What increases the salinity?
rain, snow, and melting ice add fresh water to the ocean, lowering the salinity there. Salinity is also lower near the mouths of large rivers. These rivers empty great amounts of fresh water into the ocean.
Which areas of the ocean have the lowest salinity and why?
The lowest areas of salinity in an ocean are near where fresh water rivers empty into them. This is because the influx of fresh water creates an area of lower salinity compared to the remainder of the ocean.
Places where rivers pour fresh water into the ocean have low salinity?
Estuaries and river deltas are areas where rivers pour fresh water into the ocean, resulting in lower salinity levels. The mixing of freshwater with saltwater creates a brackish environment suitable for unique ecosystems to thrive. These areas are important breeding grounds for many marine species due to the nutrient-rich waters.
What condition would cause the salinity of ocean water decrease?
A river flowing into the sea is causing the decrease in salinity
Fresh water enters the ocean by?
Rivers and rain are the two that I can think of.
Why does salinity remain constant over time?
Salinity remains relatively constant over time because there is a balance between the influx of fresh water (from sources like rivers and precipitation) and the evaporation of water from the ocean. Any changes in salinity are usually localized and temporary, as the ocean has a large volume and slow mixing processes.
Ocean water has a higher what than fresh water?
Ocean water has a higher salinity than fresh water.
Why doesn't ocean water ever get diluted by fresh water rivers running into the oceans?
Ocean water is diluted by the rivers. Probably the best example of this is where the Amazon river meets the ocean. Approximately 160km away from the mouth of the river Amazon, the ocean water is still fresh enough to drink. It probably doesn't taste very nice though. IN ADDITION: Volume. The amount of fresh water that flows into the ocean can be measured in parts per million. It doesn't have the volume needed to change the salinity of the ocean as a whole. It would be equivalent to adding one drop of food coloring to a swimming pool and trying to notice the difference later. +++ Such dilution is local, but the ocean's salinity is by no means homogenous anyway. The water circulation is cyclic, with vapour from the sea being distilled water. Once it falls as rain or snow, it collects minerals from the rocks the rivers are eroding, helping maintain the sea's overall cocktail of dissolved salts. So the rivers have no real effect on the sea's saltiness overall, but if anything maintain it.
Does water move or circulate between fresh water and salt water?
Yes; rivers run into the ocean at places called Estuaries. What evaporates from the ocean, and is dropped as freshwater in raindrops.
Is the salinity uniform throughout?
No, salinity is not uniform throughout the ocean. It can vary due to factors such as evaporation, precipitation, input of freshwater from rivers, and mixing of water masses. Salinity levels can be different in different regions and at different depths within the ocean.
What is the difference between fresh water and ocean?
Ocean water has a higher salinity (salt content) than fresh water does.
