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Which of the following did Alfred Wegener NOT use to support his theory of continental drift?
1990s
The decade spanning from January 1, 1990, to December 31, 1999, marked by significant global events, technological advancements, and cultural shifts.
Productivity Growth Rates
The rate at which the efficiency of production of goods and services increases over time, leading to more output per unit of input.
Employment Growth
An increase in the number of people employed in an economy, indicating a growing workforce.
Output Per Capita
A measure of a country's economic output that accounts for its population, often used to compare economic productivity and living standards across different nations.
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