Examlex
Which point indicates the location on the H-R diagram of a one-solar-mass star when it starts to fuse helium?
Taxes
Mandatory contributions to state revenue, levied by the government on workers' income, business profits, or added to the cost of some goods, services, and transactions.
National Income
The total amount of money earned within a country from production and services over a specific time period.
Opportunity Cost
Dismissing potential benefits from other possible choices by focusing on one.
Scarce Resources
Natural or human resources that are limited in supply and cannot fulfill all wants and needs due to their finite availability.
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