The different African colonies aren't united because of their languages, religion, and culture. Because of this, European armies are large and can easily take over the small African colonies because they don't like eachother and won't put their powers together for the greater good.
A rising population equates to a larger labor force. In other words, the more people there are, the more people can be working in factories making products and in fields producing resources.
Its the second one i think have it checked i might be wrong :)
Answer: The bigger cities had thriving cosmopolitan markets, and Constantinople became one of the largest trading hubs in the world where shoppers could stroll down covered streets and pick up anything from Bulgarian linen to Arabian perfumes.
Explanation: