How did climate and the environment affect the practice of hunting and gathering and human culture during the paleolithic period?

Climate change greatly affected the food sources in The Paleolithic Age. As hunting and gathering was the main source of feeding, due to climate and environmental changes there were no food sources left because they either started getting extinct or moving to other areas causing the hunters and gatherers also to move from an area to another.

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity

yes based on alexanders actions he deserved the title of "the great". his empire covered about 3,000 miles and he was able to establish the empire over a 13 year period of time. he was able to conquer many different places. he also defeated the persians. he conquered egypt and developed a city and named it after himself.