Compare the amount of carbon dioxide released in one year from burning coal to power 10, 65-watt incandescent bulbs with the amount released from powering 10, 13-watt compact fluorescent light (cfl) bulbs. assume the bulbs are on four hours per day for 365 days. you will need to determine the kilowatt hours (kwh) used. first, multiply the wattage of the bulbs by the number of light bulbs to determine the total watts used in one hour. then multiply the result by time in hours to obtain the watt hours. next, divide the result by 1000 to obtain kilowatt hours. on average, 2.1 pounds of carbon dioxide are released for every kwh of electricity produced. b boldi italicsu underline bulleted list numbered list subscript superscript