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.
Answer:
Temperature inversions
Explanation:
<u>Temperature inversions</u> can act as a lid or trap, thus worsening air-pollution problems.
Temperature inversion is an increase in air temperature as it rises with respect to ground height. As the temperature inversion rises, so does the air density. Toxic and bad pollutants can occur in this area itself.
Since the temperature inversion is stable and windless it will remain at one particular height <em>collected with all the negative substances</em>. This is further referred to polluted air and often occurs in large, heavily populated cities.
Answer is B
Explanation:
The force exerted on the coma by the Sun's radiation pressure and solar wind cause an enormous tail to form, which points away from the Sun.
The correct answer is D.) Hunters and Gatherers .
My reason being is because this is how they got their food.
This was there whole living situations.
I really hope that this helps you .
Climate change............