While watching the telescreen, how does winston know that bad news is coming?

Describe how gravity and convection work together to move the plates in the plate tectonics theory

Which three sentences in the story indicate that the passage is an ex nihilism type of creation story?

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.