Young people are more likely to be out on the street than________.

The boundary between two air masses of different densities is called a ____.

Coastal upwelling is most common in association with ____ in the Northern Hemisphere.

A zone in which the ocean’s salinity changes rapidly with increasing depth is called ____.

Which of the following factors are not how efficient departments deliver patrol services to the public?

Community policing alters the basic philosophy of policing.

A patrol “hot spot” is an area that receives a ________number of calls for service.

Oxygen first began to accumulate in Earth’s atmosphere as a result of ____.

Which of the following is not “physical” disorder?

On a planetary scale, the ocean comprises about ____% of Earth’s mass.