Studies of shifting patterns in age, income, education, race, and other population characteristics are the subject of:

The correct answer is - demographics.

Explanation:

Demographics is the study of the change or shifting of the statistical data such as average age, income, employment, education, race and other socio-economic data and factors in a population.

Demographics data can be acquired by asking simple questions through the surveys and develop categories in population to study the groups on their average age, sex, income and other factors.

this headline suggests that midterm congressional   elections are at the corner and trump administration wants to activate his base by vowing to clamp down on immigrants and immigration as trump had said during his election campaign around two years ago. when a baby is born in usa, the baby becomes citizen of usa for 85 years and trump wants to end this rule of birthright citizenship to control illegal immigration and this what he said in an interview""we’re the only country in the world where a person comes in and has a baby, and the baby is essentially a citizen of the united states for 85 years, with all of those benefits,” "