Natural resources

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Across
  1. 3. soil which contains humus, living organisms and soil particles
  2. 4. thinning of ozone layer
  3. 6. when oxides of nitrogen and sulphur dissolve in rain
  4. 7. A greenhouse gas
  5. 8. which prevents sudden increase in temperature during daylight
Down
  1. 1. the zone of earth where atmosphere,hydrosphere and lithosphere interacts
  2. 2. outer crust of earth
  3. 5. helps in formation of soil