SOIL CONSERVATION

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Across
  1. 5. THE PROCESS BY WHICH WIND, WATER, ICE, OR GRAVITY MOVES WEATHERED PARTICLES OF ROCK AND SOIL
  2. 6. ROCKS THAT MAKE UP EARTH'S CRUST; ALSO THE SOLID LAYER BENEATH THE SOIL
  3. 8. SOIL CONSERVATION METHOD IN WHICH WEEDS AND DEAD STALKS FROM THE PREVIOUS YEAR'S CROP ARE PLOWED INTO THE GROUND
  4. 9. THE CRUMBLY, TOPMOST LAYER FO SOIL MADE UPOF CLAY AND OTHER MINERALS AND HUMUS
  5. 10. THE ADVANCEMENT OF DESERT-LIKE CONDITIONS INTO AREAS THAT WERE PREVIOUSLY FERTILE; CAUSED BY OVERFARMING, OVERGRAZING, DROUGHT, AND CLIMATE CHANGE
  6. 11. A SUBSTANCE THAT PROVIDES NUTRIENTS TO HELP CROPS GROW BETTER
  7. 13. PLOWING FIELDS ALONG THE CURVES OF A SLOPE TO PREVENT SOIL LOSS
  8. 15. THE PROCESS FO RESTORING LAND TO A MORE NATURAL, PRODUCTIVE STATE
Down
  1. 1. ANYTHING NATURALLY OCCURRING IN THE ENVIRONMENT THAT HUMANS USE
  2. 2. THE SITUATION THAT ARISES WHEN MORE SOIL NUTRIENTS ARE USED THAN DECOMPOSERS CAN SUPPLY
  3. 3. THE MANAGEMENT OF SOIL TO LIMIT ITS DESTRUCTION
  4. 4. THE PLANTING OF DIFFERENT CROPS IN A FIELD EACH YEAR TO MAINTAIN THE SOIL'S FERTILITY
  5. 7. THE LAYER OF SOIL BELOW THE TOPSOIL THAT HAS LESS PLANT AND ANIAL MATTER THAN TOPSOIL AND CONTAINS MOSTLY CLAY AND OTHER MINERALS
  6. 12. A LONG PERIOD OF LOW PRECIPITATION
  7. 14. THE VERY TOP LAYER OF FERTILE SOIL MADE OF DEAD LEAVES AND GRASS (O HORIZON)