Question

what geographic tool would best show the top three countries that send immigrants to the us in a certain year?

a bar graph that compares different us cities

a timeline of major immigration laws

a world map that highlights immigration routes

a pie chart that shows percentages by country

Explanation:

A pie - chart is ideal for showing proportions or percentages. It can clearly display the percentage of immigrants from each country, making it easy to identify the top three countries sending immigrants to the US. A bar - graph comparing US cities is not relevant as it focuses on cities not countries. A timeline of immigration laws has nothing to do with showing countries of origin. A world map highlighting immigration routes doesn't specifically show the top - three countries in terms of percentages.

Answer:

D. a pie chart that shows percentages by country