<span>More than 500 pounds of fossil fuels alone are guzzled up--several times the weight of your computer--not to mention nearly 50 pounds of chemicals, and 1.5 tons of water. Metals, silicon and petroleum are among the main raw materials that undergo several transformations (largely through the intensive use of chemicals) to fit neatly in your computer's sleek casing. This is off a website. </span>
The two diverged roads refers to the alternatives in our life. 'The Road Not Taken' teaches us about we have to choose the best alternative(road) out of many in our life.
Two sentences become a sentence, using transitions words or phrases that link sentences and paragraphs together smoothly so that there are no abrupt jumps or breaks between ideas.