Read this passage from a fictional 20th-century Russian newsletter: The Russian czarist system must end immediately. It is the
only thing responsible for the starvation and death
Russians face today. Without the czar, Russia would be the
wealthiest, most powerful country in the world. If we
overthrow him, the Russian people will have the highest
standard of living humanity has ever witnessed within six
months!
Why would historians most likely question this source's credibility?

the 9th amendment

explanation:

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 !

b.unemployment reached nearly 25 percent.