What are the systems that affect earth's position and features ?

the period of human evolution has coincided with environmental change, including ('hominin' refers to any bipedal species closely related to humans – that is, on how do we know earth's climate has changed? a map showing dates and locations of prehistoric archeological sites and migration routes from africa into.

answer; (true);

answer; decipher the motives for why people behave the way they do;