What percent of our energy needs for our homes, workplaces, transportation and factories are provided by oil and
natural gas?
What will be an ideal response?
Oil and natural gas provide us with three-fifths (60 percent) of our energy needs for our homes, workplaces,
transportation, and factories
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What is the volume of a cylindrical tank with these dimensions: diameter = 8 feet and length = 16 feet
a. 4,891.65 gallons b. 5,472.16 gallons c. 6,012.72 gallons d. 6,695.99 gallons
As concrete hardens, the heat of hydration continues, decreasing over a period of up to _____.
a. 18 hours b. 36 hours c. several days d. two weeks
Which of the following is LEAST-Likely a type of retaining ring?
A. Joint ring B. Circle clip C. External snap ring D. Internal snap ring
What gas(es) is(are) released from a battery when it is being charged?
A) Oxygen B) Hydrogen and Oxygen C) Hydrogen D) Nitrogen and Oxygen