How did innovations such as irrigation, aqueducts, and improved farm techniques transform civilizations?
a is the answer> > innovations made it possible to expand settlements at arid locations.

why is this the right answer?

if you have to make a general question and respond to your thoughts, then this isn't really a question someone can you on. read the passage, form your question, and answer using your thoughts. no one else can understand how you interpreted this text if you don't tell us.

the chair is the committee member from the majority party who has the most seniority. in the south carolina senate, the chair is the committee member from the majority party who has the most committee seniority.