What started the greco-persian wars?

a. persian forces extended their control into greek-controlled egypt
b. greek city-states were divided over whether or not to join the persian empire
c. greek city-states in persian-controlled anatolia rebelled with the support of other greek city-states
d. cyrus the great was replaced by his son cambyses ii, who hoped to exert control over all of the greek city states

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)

biological/genetic factors means they were born or predisposed to have something. nothing can really change it, and you can't really do much to "fix" it. it isn't something learned

these are the biological factors:

adrian is relatively tall and he is on the basketball team

(adrian can't ever stop being tall or force himself to be tall. likely one or both of his parents are tall as well and they passed on the tall gene. he probably does basketball because he is tall)

the rest are environmental/cultural factors. these are things that are taught to us. for example, cynthia wasn't born saving pocket money, her family most likely taught her this (environmental factor)

hope this !