What tool could you use to organize and illustrate the structure of a given population demographic?
a)
data flow diagram
b)
entity-relationship model (e-r model)
c)
population density equation
d)
data structure diagram (dsd)

Option (d)

Explanation:

The tool could you use to help organize and illustrate the structure of a given population demographic is Data Structure Diagram.  It uses graphical ways to represent the age distribution, sex ratio of the given population.  

Changes can be made in the Composition of the population, Educational attainment, occupation like all types of Information can be organised in a format. Also population pyramid charts can be implemented for clear overview.

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.

question

which are human systems?

the amazon rain forest

the appalachian trail

the george washington bridge

the himalayas

the hoover dam

the north american free trade agreement