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10 Cards in this Set

  • Front
  • Back
planet
a large body of matter that revolves around the sun
orbit
the path an object takes around another object
probes
unmanned satellites that study planets
invisible
not seen
entire
whole
difference
the way things are not alike
zones
an area
subtropical
a climate with hot and humid summers and mild winters
average
the usual
hazard
a source of danger