Which of the following is true about how contamination moves in groundwater?
A. Contamination moves opposite to the direction of groundwater flow.
B. Contamination introduced into the ground does not move.
C. Contamination moves up the slope of groundwater.
D. Contamination spreads out as it moves, forming a widening plume.
Answer: D
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Surface mining techniques are used to extract ____% of the coal used in the United States
a. 20 b. 40 c. 60 d. 80 e. 100
Which of the following is a mathematical statement of the ideal gas law?
A) PVRT = n B) PV/RT = n C) VRT/P = n D) n = RT/PV
A hurricane _______________ indicates that a hurricane is expected in the area within 24 hours
Fill in the blank with correct word.
The Mercator projection is frequently used in classrooms because its straight lines accurately depict the areas of continents and countries
a. True b. False Indicate whether the statement is true or false