Coal is used primarily in the US to generate electricity. Among the countries with operating nuclear plant, national dependence on nuclear energy for electricity varies greatly. Despite recent substitutions of aluminum, iron remains the metal that is consumed in greatest quantity. Copper is a ductile, malleable, reddish brown metallic element that is used as an excellent conductor of heat and electricity and is widely used for electrical wiring, water piping, and corrosion resistant parts, either pure or in alloys such as brass and bronze. Wind, the Sun, and Ethanol are also important resources.
Wind is important in determining and controlling climate and weather.
The Sun is important is essential for agriculture. Review Questions 1. Submitted by Ryan Hagedorn- on February 17 th , 2001.