The primary causes were that Sparta feared of the growing power and influence of the Athenian Empire. The Peloponnesian war began after the Persian Wars ended in 449 BCE. The two powers struggled to agree on their respective spheres of influence absent Persia's influence.
The answers A I learned this last year in school. :D
Half of all marriages end in divorce.
The gap between richer and poorer Americans has grown.
Fewer adults are marrying.
Non-traditional family structures have become more common.
They have to be a natural born citizen, be at least 35 years old and lived in the use for 14 years.
C. The necessary and proper clause is known as the elastic clause because it allowed Congress to do things outside of their enumerated powers.