The tendency of an object to float when submerged

A measure of how tightly packed matter is in an area

Zone in which salinity increases rapidly with depth. (We saw this in a cave diving video)

Most common salt found in seawater

The degree of acidity or alkalinity of a solution

Any diving injury resulting from pressure, such as nitrogen narcosis or the "bends"

The amount of oxygen dissolved in an amount of water

Total pressure exerted underwater

Normal pH range of freshwater

Normal pH range of saltwater

Which of the following processes increase the amount of ammonia in an aquatic system?

During the nitrogen cycle, ammonia is converted into ...

During the nitrogen cycle, nitrites are converted into ...

A water sample with 36 ppt salinity is most likely which type of water?

A water sample with 23 ppt salinity is most likely which type of water?

A water sample with 0 ppt salinity is most likely which type of water?

Which of the following nitrogenous compounds are the MOST toxic to fish?

Which of the following nitrogenous compounds are the LEAST toxic to fish?

From the data below, determine which tank has the beneficial bacteria needed to complete the nitrogen cycle and is safe to add fish. (Hint: Remember which compounds are toxic.)