Probably the major advantage of walking upright was that it freed the hands to use tools and carry (the pray).
Another advantage is seeing further than on four legs, without the need to stop walking and raising oneself for a little while to look around ( like some animals do).
Like first European groups, the Irish, Scottish, French, and English.
Answer:
Socio-economic development is the process of social and economic development in a society. ... Causes of socio-economic impacts are, for example, new technologies, changes in laws, changes in the physical environment and ecological changes.
