C. Each is a center for trade and transportation. almost every major city in the states is that way, either that or a port city
Deserts where made long ago, but some may be made by the temperature and maybe sand from the beach could travel, hoped I helped!
C. From developing to developed countries.
Answer:
The null hypothesis is a typical statistical theory which suggests that no statistical relationship and significance exists in a set of given single observed variable, between two sets of observed data and measured phenomena.
Hope this helps, have a great day/night, and stay safe!
