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