Because people involved in collective behavior do so anonymously and are swept up by the power of suggestion, they cannot legally be held responsible for their behavior.

a. true.
b. false

It is false that because people involved in collective behavior do so anonymously and are swept up by the power of suggestion, they cannot legally be held responsible for their behavior.

Explanation:

Collective behavior is the behavior exhibited by particular group of people who tend to remain together for short lived social interactions. Any person can join in this as a member. During any religious revival meeting or showing their hatred towards norms that are contradictory, people join together collectively.

The social movements emerge due to some reasons then they face either success or failure and then after sometime they decline. Sometimes this collective behavior is swept by the power of suggestion involved in vandalism and riots which is a form of civil disorder.  

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)