Soils

1234567
Across
  1. 3. an essential macronutrient for plant growth
  2. 5. sedimentary material composed of fine mineral particles in size between sand and clay
  3. 6. a glycoprotein produced abundantly on hyphae and spores of arbuscular mycorrhizal fungi in soil and in roots
  4. 7. spore-producing organisms that lack chlorophyll and often grow filaments (tiny root-like structures)
Down
  1. 1. a chemical element that is found in bone and teeth and is also important to chemical body processes
  2. 2. a colorless odorless unreactive gas that forms about 78% of the earth's atmosphere
  3. 4. the smallest of the three soil particle sizes measuring less than 0.002 mm
  4. 5. the largest mineral soil particles, measuring between 2.00 and 0.05 mm