1) The document is a homework assignment from a 9th grade social studies class about attrition warfare.
2) Attrition warfare is a military strategy where one side tries to wear down their enemy through continuous losses until the enemy collapses.
3) The first task is to analyze how the Athenians' naval forces gave them an advantage over the Spartans on land, and to imagine a strategy as the Athenian leader Pericles to defeat the Spartans using their naval superiority.