Are there any answer choices?
Submarines use <span>buoyancy by filling ballast tanks up with water. When they are filled with water, they are more dense than the surrounding water, so they are able to sink. If they want to rise, they fill these tanks up with air so that the density is less than the water it surrounds.
Hope this helps! :)</span>
Answer:
A
Explanation:
Pressure, temperature are measurable properties and they are also known as physical properties.
<u>D.</u>
For every action ther is an equal and opposite reaction.
equal in force, opposite in direction
I'd guess at valve B. more information about the interesting question would help.
