Physics, 14.12.2019 08:31, seonna

The population in the united states in 2015 was 321 million people. it is projected to increase to 438 million people by the year 2050.

if projections are true, the us population will increase % from 2015 to 2050

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The population in the united states in 2015 was 321 million people. it is projected to increase to 4...