GEOLOGY

EARTH SCIENCE

OCEANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Tell how the temperature, pressure, and density of water would most likely change as you ascended from the floor of the ocean to the surface. In other words, would each decrease or increase?
A
All will decrease.
B
Temperature will increase, pressure will decrease, and density will increase.
C
All will increase.
D
Temperature will increase, pressure will increase, and density will decrease.
Explanation: 

Detailed explanation-1: -As you go deeper into the ocean, the temperature decreases and the pressure increases.

Detailed explanation-2: -if the fluid is hot water, saturated, the density is higher by given higher pressure. fluid can either be gas or liquid. the density of a fluid is inversely proportional to its pressure hence, as pressure is increased, a decrease in density is observed, mass etc. being kept constant.

Detailed explanation-3: -Air pressure and density work and change together as you enter different layers of the atmosphere. As the atmosphere expands the further you get from the Earth’s surface, it becomes less dense and air pressure decreases. As you increase altitude (distance from Earth’s surface) in an airplane, air pressure changes.

Detailed explanation-4: -Typically, the salinity decreases from the surface ocean to deep waters is very small, from about 36 g/L (ppt) at the surface to 35 g/L (ppt) in the deep water, thus there is a very small density decrease with depth given a constant temperature. The salinity of seawater also affects it’s freezing point temperature.

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