Is it reliable, is it from the same time period of the event, is it written by or made by or the writer of the primary source has seen the event or has witnessed it or it is a autobiography.
Greek civilization was affected by their geography because Greece was essentially a bunch of mountainous islands in the Mediterranean Sea . This caused Greece to develop into different city-states each having differences often resulting in waring . Example Sparta and Athens.
A and B both are true about the Greek religious belief.
While Washington's troops were on their way to Trenton they would go across very frozen lakes and rivers in small boats and had to walk miles upon miles after this. This did pay off though, the rivers essentially trapped the British into having them surrender, along with the high ground the Americans had.