Examlex
A lava ________ is a small hole which develops in cooling lava when gas is unable to escape as the lava solidifies.
Savings Bond
A government bond that offers a fixed interest rate over a fixed period of time, often considered a safe investment.
Production Possibilities Frontier
A curve depicting all maximum output possibilities for two or more goods given a set of inputs (resources, labor, etc.).
World War II
A worldwide war that spanned from 1939 to 1945, engaging the majority of the planet's countries, with all the major powers eventually splitting into two conflicting military coalitions: the Allies and the Axis.
Great Depression
A severe worldwide economic downturn that took place during the 1930s, marked by high unemployment and deflation in most countries.
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