General English

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Across
  1. 2. an urban area that has a name.
  2. 3. the planet on which we live.
  3. 6. a place for educating students
  4. 7. the plural of that.
Down
  1. 1. a four-wheeled road vehicle that is powered by an engine and is able to carry a small number of people.
  2. 2. the plural of this.
  3. 4. a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
  4. 5. the earth, together with all of its countries, people, and natural features.
  5. 8. the salty water that covers a large part of surface of the earth