Which of the Following Statements Is True About Christopher Columbus

question 30

Multiple Choice

Which of the following statements is true about Christopher Columbus and his explorations?

• A) His goal was to discover new lands.
• B) Like many early explorers, Columbus thought the Earth was flat.
• C) One of Columbus' biggest mistakes is that he estimated the Earth to be only about half of its true size.
• D) He was the first explorer to see the mainland of North America.

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Definitions:

Angle of Repose

The steepest angle at which a sloping surface formed of a particular loose material is stable.

Slope Failure

The sudden or gradual collapse of a slope that is too steep for its material to resist the pull of gravity.

Calcium Carbonate

Calcium carbonate is a chemical compound, CaCO3, found in rocks as the minerals calcite and aragonite and is the main component of shells of marine organisms, snails, and eggs.

Clay Minerals

A group of hydrous aluminium phyllosilicates, sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths, and other cations, which are found in soils and sedimentary rocks.