The Big Bang took place approximately ____ years ago.

Bonus Question –  The composition of the mantle is:

True or False; Specified gravity is a special property used to identify the tensile strength of silicate minerals?

True or False; Changes in the Earth’s magnetic field have occurred throughout geologic time, and these are called magnetic reversals?

Which of the following cycles represents the most accepted explanations for the formation of supercontinents and ocean basins opening/closing?

An example of a material that has been both a resource and a reserve, depending on abundance, economic conditions, and mining technology, is:

Which of the following statements about the asthenosphere is NOT true?

True or False; Hot spots move with continental plates?

Which of the following are all examples of minerals?

True or False; The nebula theory of the formation of the solar system accounts for the differences in composition between the terrestrial (rocky) and Jovian (gaseous) planets?