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Read the introduction and background information contained in this exercise that

ID: 273118 • Letter: R

Question

Read the introduction and background information contained in this exercise that discusses soil nutrients, soil texture and soil ph. Use answers A-U below to fill in the matching section numbered 1-12 below. H. lons. l. Freezing/thawing J. Alkaline. K. Potassium. L. Neutral. M. Phosphorous. N. Inorganic. O. Sulfur. P. Acidic Q. Silt. R. Clay. S. Sweet peas. T. Magnesium. U. Organic. A. Carbonic acid B. Compounds C. Calcium. D. Nitrogen. E. Sand F. Azaleas. G. Zinc. 1. Form in which essential elements are typically absorbed by root hairs. 6. This element helps balance the effects of too much nitrogen as well as assists in the development of a healthy root system. Without this element, plants cannot produce the pigment needed for photosynthesis. 7. 8. This particle type is the smallest of all. 10. This element may be released from leached rocks or from animal waste digested by detritivores. 11. This particle type is approximately 002 to .05 mm in diameter 12. An example of mechanical, not chemical, weathering

Explanation / Answer

Ions- 1. Form in which essential elements are typically absorbed by root hairs.

Potassium- 6. This element helps balance the effects of too much nitrogen as well as assists in the development of a healthy root system.

Magnesium- 7. Without this element, plants cannot produce the pigment needed for photosynthesis.

Clay-8. This particle type is the smallest of all.

Phosphorous- 10. This element may be released from leached rocks or from animal waste digested by detrivores.

Silt- 11. This particle type is approximately 0.002 to 0.05 mm in diameter.

Freezing/ Thawing -12. An example of mechanical not chemical weathering.