Puzzle time

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Across
  1. 4. The force that holds the atmosphere around the Earth.
  2. 5. The world of non-living elements.
  3. 7. A book that has all the rules to run a country.
  4. 8. formed by the relation between the organisms and their surroundings.
  5. 9. A trade in which goods are exchanged without the use of money.
Down
  1. 1. The situation in which everyone has the same rights and opportunities.
  2. 2. Thinking of oneself or others as worthy of respect.
  3. 3. Lithosphere is the solid ____ or the hard top layer of the earth.
  4. 6. The narrow zone of the earth where land, water and air interact with each other to support life.