Answer:
It changed the way we think and made the modern age possible.
Answer:
Greece began to decline
Explanation:
The war ended the Golden Age of Athenian Culture and arguably weakened the Greek world forever. ... The primary causes were that Sparta feared the growing power and influence of the Athenian Empire. The Peloponnesian war began after the Persian Wars ended in 449 BCE.
D foccus on helping underdevoloped countries
Based on my knowledge, I would say answer A
I take it you mean modern Israel.
Basically, the territory of Israel increased in a few steps, but otherwise remained stable. The increases were usually connected with military conflicts. An example is the Little Triangle in nothern Israel, that was incorporated into the country (in exchange for another region though).
Please note that this is a politically charged question and any responses will be biased.