E7.1-E7.2 Focused Crossword

1234567891011121314
Across
  1. 2. The excess growth of aquatic life.
  2. 4. What replaces nutrients?
  3. 6. What is a major cause of salinization due to the rise of water table.
  4. 8. The chemical substance used to control number of plants, weeds, and fungi.
  5. 11. Soil is the vital par of the earth that is a _____ mixture.
  6. 13. Mixture of non-living organic components present in soil in various stages of decomposition from chemical and biological action on plant matter.
  7. 14. What energy is used to convert carbon dioxide to sugar by plants and algae.
Down
  1. 1. The weathering of the rocks due to its breakdown by ______ create soil.
  2. 3. What is used in plant cell wall synthesis.
  3. 5. What substance provides better harvest by killing insect pests.
  4. 7. The removal of essential nutrients and minerals from the soil food web by crops that grow and harvested leading to soil degradation.
  5. 9. What is the largest inorganic component in soil.
  6. 10. Which element controls the water that enters via osmosis.
  7. 12. What is the structure of silicon(IV) oxide.
  8. 13. Accumulation of water soluble ions.