rome fell through a gradual process because poor economic policies led to a weakened military which allowed the barbarians easy access to the empire. In the third century, Rome's emperors embraced harmful economic policies which led to Rome's decline. First, the limitation of gold and silver resources led to inflation.
The correct answer is : b. Waterwheel for irrigation.
The first clear description of a waterwheel for irrigation was given by Roman architect <em>Vitruvio </em>around 4000 B.C during Roman times. Although some texts mention Mesopotamia and Alexandria as its invention sites.
Hydraulic energy usage dates from the Greeks, whom employed the waterwheel invented by Philo of Byzantium in the third century B.C. The Egyptians and Romans afterwards, which were great voyagers and architects, improved the waterwheel and conduits, needing human strength to turn the wheel.
Roman architect Marco Vitruvio discover the horizontal axis waterwheel, which was used mainly for crop irrigation, to supply water to villagers and to grind grains.
<span>Why do people have different perspectives? its all about how people see things in their minds
</span><span>What are some examples of media? news,tv,google,facebook,and twitter
</span>
I'm guessing B, (to punishment) :p
Three reasons why prehistoric people were settling deeper inside the mainland territories are:
- Less natural disasters;
The inland territories are much less effected by natural disasters, and the climate is much more predictable and its much safer for living in this areas, and this is a big factor when deciding where to live.
- Dense vast lowland forests;
The vast forests inside of the continents were of huge importance to the early people because they were providing lots of food sources for them, so naturally people were moving into the areas were food was more abundant.
- Bigger and more abundant pray;
The bigger pray that can feed the people better and for longer time was usually located deeper into the continents, so people were attracted by the opportunity to have much bigger and stable food sources.