Soils high in organic matter commonly hold more available water than comparable soils with lower organic matter levels. This is most likely due to what characteristic of the high O.M. soils?
A) higher capacity of the O.M. to hold water tightly
B) larger micro pore space
C) higher field capacity
D) lower permanent wilting percentage
E) higher clay content
C
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________ is the endogenous growth substance (hormone) that most commonly inhibits germination.
Fill in the blank(s) with the appropriate word(s).
Filing an informal report immediately after an accident occurs is important for all of the following reasons except that it _____.
a. allows support staff to provide instructions and clerical assistance b. permits support staff to deal with the employee’s injuries c. provides further evidence of an employee wrongdoing d. alerts the company that an accident with injury has occurred
To forward bias a silicon diode ________
A) The voltage at the anode must exceed the voltage at the cathode by 0.3 to 0.5 volt B) The anode must be connected to a resistor (300-500 ohms) and 12.0 volts, with the cathode also connected to 12.0 volts C) The voltage at the cathode must exceed the voltage at the anode by 0.3 to 0.5 volt D) The voltage at the anode must exceed the voltage at the cathode by 0.5 to 0.7 volt
How does an oil acid test kit indicate the presence of acid?
A) The liquid in the sample tube boils. B) By a color change C) The test kit produces a strong pungent odor. D) The word "acidic" appears on the test strip.