In humid regions repeat applications of limestone are needed after a few years primarily because of:
A) increased rates of formation of carbonic acid (H2CO3).
B) the release of aluminum ions from the structure of silicate clays.
C) increases in phosphate fertilization.
D) the annual loss of calcium and magnesium in drainage waters.
E) increases in soil acidity from acid rain.
D
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Which of the following terms best describes the study or theoretical explanation of natural phenomena?
a. Ecology c. Science b. Biology d. Agriculture
Compute the block diagram representation and the transfer functions for
for the following electrical circuit.
What will be an ideal response?
If the voltage increases in a circuit, what happens to the current (amperes) if the resistance stays the same?
A) Cannot be determined B) Increases C) Remains the same D) Decreases
Technician A says that to find out which personal protective devices should be used when handling DOT 3 brake fluid, section eight of the brake fluid SDS should be consulted. Technician B says that if there is no warning on the can label of DOT 3 brake fluid, no personal protective equipment is needed. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B