Brian, an industrial psychologist, begins a session on business environment by asking the attendees to imagine themselves working in a cramped office with a controlling boss. he then continues his presentation using the responses from the attendees. in the given scenario, brian uses to open his presentation.

In the given scenario, Brian uses audience involvement to open his presentation.

Explanation:

For the majority of spectators in an audience, paying attention to a presentation for any amount of time can be quite hard. If they do not feel engaged by the speaker, they will lose their attention, and probably will not benefit from the information presented at all. This is why a presentation should have a lot of energy, a defined purpose, and be totally direct (as if the audience was an individual and it was a one-to-one conversation), to involve the audience.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.