The paragraph about electric cars should be reorganized as '2, 1, 4, 3' to effectively communicate the relationship between the claim of environmental friendliness and the counterclaim regarding the electricity source.
Step-by-step explanation:
To create a clear relationship between the claim and counterclaim in the given paragraph about electric cars and their environmental impact, one must first present the claim about their efficiency and lack of emissions, then introduce the counterclaim regarding the source of electricity they use. The correct reorganization of the paragraph is 2, 1, 4, 3.
Reorganized Paragraph
Electric cars are the most environmentally friendly motor vehicle on the road.
Electric cars produce zero emissions and are 60 percent more energy efficient than gasoline-fueled cars.
Electric cars are not completely clean however.
The electricity used to power electric cars can come from dirty sources such as burned coal.
This sequence presents the positive aspects of electric cars first, making the reader appreciate their potential environmental benefits, and then introduces the caveat that the source of electricity may compromise their 'clean' status.