Answer:
The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
Explanation:
"Father, forgive them, for they do not know what they do."Gospel of Luke 23:34
Answer: Life is difficult because humans things that we must do takes time and effort to do them and to get them done, the other reason is that because that that is hard is because we need an intellectual challenge so we can learn and get things done.
I think I may be a little bit off on this. Okay WAY off but please don't report me if this IS wrong.
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).