We Can Understand How Pressure in Water Depends on Depth

question 123

Multiple Choice

We can understand how pressure in water depends on depth by considering a stack of bricks. The pressure at the bottom of the first brick corresponds to the weight of the entire stack. Halfway up the stack, the pressure is half because the weight of the bricks above is half. To explain atmospheric pressure, we should consider a similar scenario but with compressible bricks made from a material like foam rubber. Why?

• A)Water is not very compressible, but air is.
• B)There is a lot more space between the molecules in air than there is between the molecules of liquid water.
• C)The density of air decreases as one comes down a mountain.
• D)all of the above

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Definitions:

Glucose

A simple sugar and an important energy source in living organisms, part of many carbohydrates.

Blood Pressure

The force exerted by circulating blood upon the walls of blood vessels, measured to assess heart and vascular health.

Urine Volume

The total amount of urine expelled from the body in a given period, which can vary based on hydration, health, and other factors.

Digestive

Relating to the process by which food is broken down and absorbed by the body.