The formula and calculation for getting simple interest is A = P (1 + rt). A stands for the answer which is the final investment. P is the principal amount of investment that needs to be provided at an interest rate (r) per time periods (t).
It creates the possibility of companies, which are selling a certain product on a market which does not have any other producer, becoming and having the 100% of the market share.
This enables them to completely determine the price that can be very high as people will have to pay if they want to have this product.
It also enables them to determine various aspects about the quality of the product in general.
Usualy all this would be determined by the demand and competition. But in a command economy, all of it is determined by the producer. All the products can therefore look the same and don't need to be produced in excess but in just the right amount for the people which is obviously very hard to determine.
Not sure how correct this answer is because I do not know the teacher asking it.
Water is very scarce, or very rare, in Africa which means those living there would have to adapt to that lifestyle. This causes them to have to make changes in order to get the best use of their water. This has affected the development of civilization because they cannot develop into a continent like North America because they do not have sufficient water resources in order to supply those that would be living there.
Wind power has gain interest in the last decade because it is one of few very clean renewable energy sources. There are countries, like the US that have large open spaces with excellent winds that are favorable for building large wind parks. The only downside of this source is that wind parks take a large amount of space, and it the US those are even build on the Native American Sacred Ground. On the other hand Nuclear Power Plant, is less clean and more dangerous. Nuclear Plant does not emit any CO2 in the air, but it does have a higly toxic waste and it is potentialy dangerous if the malfunction occurs. Nuclear waste is radioactive and it is the most dangerous for humans. In the countries that have less wind power, these plants are an option, as in France for example.