Practice 2 Find and correct the sentence fragment errors in these examples from student papers. Correct any additional comma splice or run-on sentence errors. You can revise the punctuation or the sentence structure to correct the errors. a) The United States uses more than half of the world's oil and more than a quarter of all the world's energy. Although a recent push has been made in the United States for a more responsible view of environmental impact. With a strong consumer market, it can be difficult to promote sustainable alternatives. One way the US can continue to grow ethically is to use more sustainable practices in as many engineering areas as possible. b) Mr. Acevedo committed two ethics violations. First, by stamping plans for the development with the knowledge that a contractor with the development was engaging in fraudulent professional practices. Secondly, by not reporting the violations to the board. c) As the U.S. has realized that it needs to pay more attention to sustainable material usage. construction materials have changed rapidly in recent years. With significant improvements in the recycling of demolition waste materials like concrete, timber, and steel. Being able to reuse these materials has positive effects, not only does it save money on projects but it also reduces the need for new material construction