Scientists believe the breakup of Pangaea occurred about ____.

Approximately how much energy radiated toward Earth from the sun is absorbed?

  The power for tropical cyclones comes from ____.

  The mass flow of ocean water that is driven by wind or gravity is referred to as ocean ____.

  Generally, the fastest and deepest ocean currents are ____.

  How much more carbon dioxide can water hold than nitrogen or oxygen at saturation?

 Which of the following factors would cause sea level to fall?

 Submarine canyons ____.

 What type of bond enables water molecules to stick together?

 Abyssal hills are small extinct volcanoes commonly associated with ____.