Salinity of the ocean
A)is generally very low
B)changes with climate
C)decreases with increase in temperature
D)increases where a river meets the ocean
I think its A but I'm not sure I just want to make sure.
I wonder what generally very low means?
Here is a site that may be useful.
The salinity is 35 ppt (about 3.5%)
To determine the correct answer, let's go through each option and explain how to get the answer:
A) Is generally very low: To verify this, we need to recall the average salinity of the ocean. The average salinity of seawater is about 3.5% or 35 parts per thousand (ppt). This level is considered high compared to freshwater, but in the context of ocean water, it is relatively low.
B) Changes with climate: To validate this option, you would need to examine whether salinity fluctuates with climate. Salinity is influenced by factors such as evaporation, precipitation, and the flow of freshwater into the ocean. Changes in climate patterns can affect these factors, leading to variations in ocean salinity. Therefore, this option is correct.
C) Decreases with an increase in temperature: To assess this option, you need to understand the relationship between temperature and salinity. Generally, when water temperature increases, evaporation occurs, resulting in higher salinity. Therefore, this option is incorrect.
D) Increases where a river meets the ocean: To evaluate this option, we must consider freshwater input into the ocean. When freshwater streams or rivers flow into the ocean, they introduce low salinity water, which dilutes the surrounding seawater, resulting in a decrease in salinity near the river mouth. Therefore, this option is inaccurate.
Based on our analysis, the correct answer is B) changes with climate.