Which is the best example of a strong topic sentence?

school can be very challenging for a student.
why do students have to take six classes every day?
with six classes a day, middle school is challenging.
social studies is a class students must take.

What is the term for water wave that is created by an underwater earthquake

Hashtags serve to identify the topic of a given tweet true false

Michael has written an e-mail to his employees that describes a new product special that will be introduced to the customers next week. by taking time to make sure the e-mail is well written, logical, and organized, michael has made sure his message has the characteristics of a) effective communicationb) ineffective communicationc) barriers to communicationd) workplace communication