How many years ago did a total solar eclipse cross the u. s. from the pacific to the atlantic oceans?

The ability to accurately gauge the distance of the coffee cup on your desk as you reach for it is called:

The author says that in some town hall meetings several thousand citizens might. attend and vote.what would you do to make sure. a town hall meeting of that many people would run smoothly

Which of the following  bestillustrates a negative reinforcer?               a.  copland gives up candy to stave off chronic acid indigestion.    b.  nancy learns that she prefers chocolate over vanilla.    c.  carmine changes his major to english lit after failing a math exam.    d.  on a hot day, lindberg always drinks lemonade.