Highly weathered soils low in available sulfur in their A horizons often have adequate supplies of available sulfur in deeper, clay-rich horizons
Indicate whether the statement is true or false
TRUE
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Ignoring the top vegetation, the composition of below-ground matter at a site is classified into two types: (i) soil and (ii) rock. What is the fundamental difference between the two?
What will be an ideal response?
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Conservation tillage can help reduce salt build up by reducing surface evaporation
Indicate whether the statement is true or false
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A normal calibration involves setting the zero and _____
A) trim B) PID C) span D) slope
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The frequency of the current in a squirrel-cage rotor _____ as the rotor approaches synchronous speed.
A. increases B. stays the same C. decreases D. is cut in half
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