Don't Know Much ...

Remember the lyrics to that great old Sam Cooke song?

Don't know much about history
Don't know much biology
Don't know much about a science book
Don't know much about the french I took

According to this survey, Sam's not alone.  The high (or low) points:

• Only 53% of adults know how long it takes for the Earth to revolve around the Sun.
• Only 59% of adults know that the earliest humans and dinosaurs did not live at the same time.
• Only 47% of adults can roughly approximate the percent of the Earth's surface that is covered with water (65-75 was considered correct).
  
• Only 21% of adults answered all three questions correctly.

Yup, sad.  I admit the study is a bit old, from February of this year, but I'm kinda slow in finding stuff.