The Sun's Chromosphere and Corona Were Discovered

question 27

Multiple Choice

The Sun's chromosphere and corona were discovered

• A) using the first telescopes Galileo built
• B) in the late 19th century through the use of a spectrograph
• C) during total eclipses of the Sun
• D) using spacecraft that orbited Venus, a planet with a better view of the Sun
• E) by ancient shepherds, who saw reflections of the Sun in quiet pools of water

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Definitions:

Allocative Efficiency

A condition in which resources are distributed in such a way that no single person can be improved in their situation without negatively affecting another, thereby ensuring the optimum benefit for society.

Minimum ATC

Refers to the lowest point on the Average Total Cost curve, indicating the most efficient scale of production where the average cost per unit is minimized.

Minimum AVC

The lowest point on the average variable cost curve, indicating the most cost-efficient level of production output.

Long-Run Supply Curve

A representation in economic theory of the relationship between product supply and prices that considers all possible adjustments in the market over time.