War, people go against each other, poverty
Answer:
The population of Africa has several specific characteristics:
- Very young: the population of Africa is very young, the median age in Africa is 19 years. For comparison, the median age in Europe is 43 years.
- High fertility: the average African woman has over 4 children, while the average European woman has 1 child or less.
- Very high population growth: because of the young population and the high fertility rate, the African population is growing very fast. Africa is projected to have over 4 billion people by the year 2100, currently, it sits at 1.3 billion people.
- Low life expectancy: the life expectancy in Africa has been improving, but it still low when compared to other parts of the world, sitting at around 60 years. For comparison, Japan, the country with the highest life expectancy on Earth, has a life expectancy of 84 years.
El Nino happens about every two to seven years. The closest answer here would be D., about every three to seven years
Crude petroleum
Petroleum gas
Refund petroleum
The imports are important for the economy because they allow a country to supply nonexistent, scarce, high cost or low quality of certain products or services, to its market with products from other countries.
Hot spots are the phenomenon that can only explain the presence of volcanoes in the middle of the Pacific Ocean. Volcanic regions have hot spots that are coming from the mantle of the Earth that is hot compared to its surrounding mantle.
