Match the words with their definitions.

• Объекты 1
  • to swirl
  • terrestrial
  • dense
  • protective
  • a crust
  • a mission
  • liquid
• Объекты 2
  • to move quickly with a circular movement
  • relating to the Earth
  • containing a lot of matter in a small space
  • be able to keep someone or something safe from injury or damage
  • a hard outer covering of something
  • the action of sending someone to a place to do a particular job
  • a substance that flows easily and is neither a gas nor a solid