When organic amendments such as animal or green manures are added to soils, micronutrient availability generally is enhanced by the production of natural chelating agents
Indicate whether the statement is true or false
TRUE
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What emission control system helps reduce the effect of engine blowby?
A) PCV B) EVAP C) SAI D) EGR
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Which of the following statements describe the capability of an open-loop system?
A. It causes the process to change when the set point is varied. B. It cannot make adjustments if a disturbance is encountered. C. It provides automatic control for some types of systems. D. All of the above.
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Which of the following is represented by the dimensioning symbol X?
A. radius B. spotface C. number of times-places D. statistical tolerance
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Calving should occur during a _____ period
a. 15- to 20-day c. 20- to 35-day b. 40- to 60-day d. 65- to 80-day
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