Determine the soil texture for the following combinations of sand, silt, and clay. a. Sand 20 percent; Silt 20 percent;Clay 60 percent:
b. Sand 60percent; Silt 30percent; Clay 10percent:
c. Sand 50percent; Silt 10percent;Clay 40 percent:
d. Sand 80 percent; Silt 15 percent; Clay 5percent: