Why did owners hire managers to manage certain aspects of their business?

What was the most important consequence of the large-scale ecological changes in africa two hundred thousand years ago?

Under the new imperialism europe did not need large numbers of people to control territories because of

Why did un coalition troops battle iraqi forces in 1991? iraq had invaded saudi arabia, along with its other border nations.iraq had invaded kuwait, which was a major source of the world's oil.the united nations wanted to remove saddam hussein from power.the united nations wanted to prevent the trade of illegal drugs.