<span>What type of advertising language tends to make extravagant and unrealistic claims about products without saying anything concrete, making it difficult to prove the truth or falsehood of the claim? Puffery. Puffery is defined as speaking or writing with false praise or exaggeration. This can be done with any type of writing/language but is common in advertising a product or service. It's hard to know what information is actually true about the product or service and what is spread far from it. </span>
The answer is a republic. In this form of government, a leader or group of leaders is chosen by the people. This differs from a democracy (which it is commonly confused with) in that in a democracy every citizen participates in decision-making, not just an elected leader or body.
I believe the answer is: Maintenance role
In an organization, people who held the maintenance role would played a crucial role in maintaining a certain level of performance/productivity among other members. This could be done by doing things such as, providing emotional support, relieving working tension, giving counseling for troubled members, etc.