The earth formed approximately ________ years ago.

a. 13,700,000,000
b. 4,600,000,000
c. 5,000
d. 4,600,000


b. 4,600,000,000

Environmental & Atmospheric Sciences

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If a leased Xerox machine's lease expires, the company

a. allows the customer to purchase it at a very low cost b. takes the machine and sends it to a landfill c. takes the machine back for reuse or re-manufacture d. asks the customer to dispose of it in an ecologically sound way e. sends the plastic and metal shell to a developing country for disposal

Environmental & Atmospheric Sciences

The three-cell model for general circulation:

A) includes a segment called the Hadley Cell. B) is a better representation of the atmosphere than the single-cell model. C) accounts for the positioning of the Polar and Subtropical jet streams. D) takes in to account the spin of the earth. E) all of the above

Environmental & Atmospheric Sciences

Which of the following substances is not a mineral: gold, water, ice? Why?

What will be an ideal response?

Environmental & Atmospheric Sciences

What was the cause of the slowdown in the economic growth rates of industrialized countries in the mid-to-late 1970s?

A) government anti-inflation policies B) international free trade agreements C) the Cold War D) increase in oil prices E) all of the above

Environmental & Atmospheric Sciences