Answer:
1. Invasions by Barbarian tribes. 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:
Maintaining an army to defend the border of the Empire from barbarian attacks was a constant drain on the government. Military spending left few resources for other vital activities, such as providing public housing and maintaining quality roads and aqueducts. Frustrated Romans lost their desire to defend the Empire.
Answer:
The Industrial Revolution transformed economies that had been based on agriculture and handicrafts into economies based on large-scale industry, mechanized manufacturing, and the factory system. New machines, new power sources, and new ways of organizing work made existing industries more productive and efficient.
Explanation: It has made people's daily lives, working careers and transportation easier but also changed the way we live. People went from working on farms in factories to earn money, but now our world has many more opportunities for better careers now.
This is a bit subjective, because there are a few ways this sentence could be re-written, however "<span>Tom opened the box and looked into it, only to find it empty" is the most standard. </span>