Examlex
The visible corona of the Sun is most effectively photographed
Necessity of Choice
An economic principle stating that due to scarce resources, individuals and societies must make decisions on how to best allocate those resources.
Self-Sufficient
The quality or condition of being able to fulfill all one's needs without reliance on external assistance.
Specialize
To focus on a specific area of production or study to gain efficiency or expertise.
Gains from Trade
The increase in welfare or economic benefit that countries or individuals obtain by engaging in voluntary exchanges where they specialize according to their comparative advantages.
Q9: Current research into the influence of cognitive
Q15: Which of the following best explains why
Q17: If all applicants for a job can
Q45: An advantage of survey designs is:<br>A)they allow
Q48: Procedures that allow researchers to rule out
Q48: The best evidence for the validity of
Q63: How is Europa's interior kept heated?<br>A) Jupiter's
Q82: The rotation of the Sun is<br>A) fastest
Q90: The SNC meteorites are<br>A) granitic rocks from
Q99: Whenever the Zeeman effect is observed in