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1- what would a soil that contains 20% sand, 70% silt, and 10% clay be classifie

ID: 118758 • Letter: 1

Question

1-  what would a soil that contains 20%  sand, 70% silt, and 10% clay be classified as?

2- what would a soil that contains 60% sand, 10% silt, and 30% clay be classified as?

3-   The yellow arrow is pointing towards a soil in the clay loam class.  Using the soil texture diagram, indicate the percentage of sand, silt, and clay that the arrow is pointing towards in the clay loam class.  

4-

A soil’s pH in terms of acidity or alkalinity, are important to plant growth. Plants thrive in a pH that lies somewhere between 4 and 10.   The lower the pH value, the __________ the acidity in the soil. Soils that have this type of acidity level are common in __________regions.

lower; arid (desert like)

higher; humid

higher; arid (desert-like)

lower, humid

A.

lower; arid (desert like)

B.

higher; humid

C.

higher; arid (desert-like)

D.

lower, humid

100 80 70 Clay 60 PA Sandy 40 Sity clay / loam 30 Sandy clay loam 20 Loam 10 Sit -Pereert sand

Explanation / Answer

1) The soil having 20%  sand, 70% silt, and 10% clay be classified as Silty loam. (From diagram)

2) The soil having 60% sand, 10% silt, and 30% clay be classified as Sandy Clay loam. (From Diagram)

3) The composition will be, 30% Clay, 30% Sand and 40% Silt.

4) higher; humid

The arid regions usually have alkaline soils so the region is humid and as the pH value lowers the acidity increases.