Multiple Choice
Which of the following occurs when the ocean's salinity increases?
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3. Water
Properties of Water- Density
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Which of the following characteristics alters the density of ocean water?
A
Atmospheric pressure
B
Sunlight intensity
C
Wind speed
D
Salinity
Verified step by step guidance1
Understand the concept of ocean water density: Ocean water density is influenced by factors that affect the mass and volume of water molecules, such as temperature and salinity.
Clarify the role of salinity: Salinity refers to the concentration of dissolved salts in water. Higher salinity increases the mass of water without significantly increasing its volume, thereby increasing its density.
Eliminate irrelevant factors: Atmospheric pressure, sunlight intensity, and wind speed do not directly alter the density of ocean water. These factors may influence other oceanic processes but are not directly related to density changes.
Relate salinity to density: As salinity increases, the density of ocean water increases because the dissolved salts add mass to the water molecules.
Conclude the relationship: Salinity is a key factor that alters the density of ocean water, making it the correct answer to the problem.
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