Why are fewer soil nutrients available to plants in coarser soil?
What will be an ideal response?
Coarser soils have a lower cation exchange rate because they are not negatively charged, as are the finer clay particles. Also, most plant nutrients are water soluble and move out of the soil if the soil particles are too large.
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List three differences between half-wave and full-wave/bridge rectifiers.
Fill in the blank(s) with the appropriate word(s).
All of these statements about heavy-duty coil springs are true EXCEPT:
A. Larger wire diameter than regular duty coil springs B. 3 to 5 percent more load-carrying capacity than regular duty coil springs C. Shorter free length than regular duty coil springs D. A high aluminum content in the spring material
A ring and pinion gear set has 11 teeth on the pinion gear and 42 teeth on the ring gear. What is the ratio?
A) Non-hunting B) Partial-hunting C) 3.72 to 1 D) 3.81 to 1
Which of the following is not one of the three basic sources of water pollution?
A) point B) diffuse C) background D) significant