<span>The Arabian Peninsula </span>
Answer: demographic trends
Explanation: demography simply refers to the study of structure, growth as well as the movement of people human population. The main tool that is commonly used to get information about the human population is the CENSUS, which is a form of head count as well as taking lots of information such as the birth rate, death rate, migration information etc into account.
Demographic trends is the direction or pattern by which a particular population is heading. The research which was carried out in USA showed the demographic pattern of which the population was heading toward people living longer (lots of old people still living) i.e there are going to more ageing people which means more health care personnels will be need to give them proper medical care.
This is an example of demographic trends influencing jobs in the future.
B. Varying from desert to tropical
Explanation:
they were nicknamed "the big six"
