a webpage called “Soda Serving Sizes: Everything in Moderation” on a soda company’s website

a magazine article called “Soda in Our Schools: Should We Allow It?”

a webpage called “Facts About Sugary Drinks” by a nonprofit educational foundation

a study by university professors who measured the effects of sugar consumption on attention span

a study by university professors who measured the efficiency of windmills

a website for a company that manufactures mechanical parts for windmills

a newspaper article called “Is Wind Power a Solution to the Energy Crisis?”

a webpage by the Department of Energy called “What Is Wind Energy?”