From http://www.moe.gov.sg/edumall/tl/digital_resources/biology17.htm
1) 4% US email users buy spam products. http://arstechnica.com/news.ars/post/20070524-study-tide-of-spam-continues-unabated-people-dont-care-as-much.html According to new research from the Pew Internet & American Life Project, four percent of US e-mail users admitted to ordering products hawked in unsolicited e-mail. 2) Pictures of pineapple plants. From http://en.wikipedia.org/wiki/Image:Pineapple_field.jpg
From http://www.moe.gov.sg/edumall/tl/digital_resources/biology17.htm