Global warming which is not a geological process but something humans have caused
It was caused by a mix of different scenarios. Rome was constantly attacked by Barbarian tribes; they were over-expanded, which made it really hard for them to keep their entire empire under control; they had a lot of economic problems and relied too much on slave labor; and they spent way too much money on their military, just to name a few factors.
Explanation:
Of all the continents, Europe and Asia are the most densely populated. Asia alone contains more than 60 percent of the world's people. Which continents are most densely populated? Today, most people in Europe, North America, South America, and Australia live in or around urban areas.
A) because igneous rock will take a lot longer to erode compared to sediment.
