What is the current number of the world population

In 1 or 2 sentences, define nationalism and give an example.

The model of human settlement suggests that uthe model of human settlement suggests that urban growth is patterned around transportation networks such as railroads and highways. a. burgess b. hoyt c. sauer d. von thunenrban growth is patterned around transportation networks

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand