<span>b. the assassination of archduke francis ferdinand.
</span>
Answer:
The mayor shares oversight of the city's day-to-day operations with city council, an appointed administrative officer or both. The mayor works together with city council, an appointed administrative officer or both to enforce laws and ordinances.
Explanation:
I hope this answers your question.
Answer:
Era
Explanation:
Epoch is an English word that is used to describe a specific period or simply a certain era about the occurrence of events or certain places or people.
Hence, in the statement "The invention of email opened an important epoch in the history of communication."
The term which can replace epoch without changing the meaning of this sentence is ERA.
Ecology is the study of interactions between the environment and living creatures.
