To calculate how long it takes a country's population to double in size and to investigate factors affecting growth rate. Since 1800, human population has grown from one billion to six billion people.
Log-in to bookmark & organize content - it's free! Jonathan Salk, son of polio vaccine developer Jonas Salk, discussed the historic growth of the world population, factors affecting that and ...
To calculate how long it takes a country's population to double in size and to investigate factors affecting growth rate. Since 1800, human population has grown from one billion to six billion people.
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