Which Planet Did Galileo Observe Go Through a Complete Set

question 55

Multiple Choice

Which planet did Galileo observe go through a complete set of phases, thus proving the Ptolemaic model wrong?

• A) Saturn
• B) Jupiter
• C) Mars
• D) Venus
• E) Mercury

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Definitions:

Quantity Supplied

The amount of a good or service that producers are willing to sell at a given price over a specified period.

Supply

The total amount of a product or service that is available to consumers at a given price.

Supply Curve

A visual chart that illustrates the connection between a good's price and the amount of it producers are ready to offer.

Aluminum

A silvery-white, lightweight metal, it's the most abundant metal in the Earth's crust and is used in a vast array of products from cans to airplanes.