Undercover operations are costly and time-consuming and should be used with extreme care. In which of the following situations would it be ineffective to conduct an undercover operation? a. When the investigation can be closely monitored b. When the investigation can remain secretive c. When law enforcement authorities are informed d. When other investigation methods are available

The correct answer is D) When other investigation methods are available.

Undercover operations are costly and time-consuming and should be used with extreme care. In which of the following situations would it be ineffective to conduct an undercover operation?   When other investigation methods are available.

Undercover operations are very special, costly, and involve key people that are well-prepared to act with discretion and to mo swiftly to advance in the operation. It requires a lot of intelligence work and handling critical information. That is why is one of the last options to choose. It is better to start with other methods of investigation. If these methods fail or fall short, then, the undercover operation is the option.

the earth’s crust is broken into separate pieces called tectonic plates (fig. 7.14). recall that the crust is the solid, rocky, outer shell of the planet. it is composed of two distinctly different types of material: the less-dense continental crust and the more-dense oceanic crust. both types of crust rest atop solid, upper mantle material. the upper mantle, in turn, floats on a denser layer of lower mantle that is much like thick molten tar.

each tectonic plate is free-floating and can move independently. earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. the term fault is used to describe the boundary between tectonic plates. most of the earthquakes and volcanoes around the pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. other observable results of short-term plate movement include the gradual widening of the great rift lakes in eastern africa and the rising of the himalayan mountain range. the motion of plates can be described in four general patterns:

collision: when two continental plates are shoved together

subduction: when one plate plunges beneath another (fig. 7.15)

spreading: when two plates are pushed apart (fig. 7.15)

transform faulting: when two plates slide past each other (fig. 7.15)