If it's an informative essay, a writer should work on description to add more information to the give topic.
Answer:
federalism is the distribution if power at local level
Answer:
The lecture about the Vietnam War was given by veterans.
Explanation:
Among the options given, the only one in the Passive Voice is "The lecture about the Vietnam War was given by veterans."
In the Passive Voice, the focus of the sentence is on the action itself, not on who or what performed the action. Thus, the subject of the sentence is not the person, thing, or animal etc. who actually carried out the action. That would be the agent. The structure is:
subject + auxiliary verb (if necessary) + verb be + main verb in the past participle + agent (if necessary).
So:
The lecture about the Vietnam War - subject
was - verb be
given - main verb in the past participle
by veterans - agent
