A grass cover crop grown on cropland over the winter season in a humid temperate region can be expected to:
A) significantly reduce the amount of water percolating to the water table.
B) significantly reduce the amount of nitrogen fertilizer that will be needed to grow the following crop.
C) increase nutrient concentrations in runoff water.
D) reduce the amount of nutrients leached to the groundwater.
E) all of the above
D
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What will be an ideal response?
While filling up your car with gasoline, you notice that it takes 3 minutes to dispense 55 liters of gasoline through the 2.5 cm diameter hose. What is the average speed, in m/s, of the gasoline inside the hose?
a. 2.48 b. 0.62 c. 6.2 d. 0.248
Advantages of fiber optic cable over copper cables include all of the following except ________
A) faster data rates B) transmission over longer distances C) immunity from EMI D) lower cost
Which of the following is true about RFID antennas?
A. larger antennas allow tags to be read at greater distances B. square antennas are common C. linear antennas have more accurate reads D. circular antennas have better range