Why does a plume of contamination spread out (become wider) away from the source of contamination?
A. it will only spread out if it is close to a cone of depression
B. because of diffusion of the contamination and mixing of contaminated and uncontaminated water
C. it does not spread out away from the source
D. because the water flows faster and faster
Answer: B
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The same cultural trait can be found in different cultural regions
Indicate whether this statement is true or false.
What is the biggest drawback for developing oil shales, tar sands, and coal gasoline?
A. Availability of these resources B. Cost C. There are no drawbacks D. Imports of these are extremely cheap
Compaction and cementation are two common processes of
A. lithification B. deposition C. erosion D. transportation
Which of the following statements applies to the Coriolis force?
A. It cannot cause winds to change direction, but to increase or decrease in speed. B. It causes winds to deflect to the left in the northern hemisphere. C. It can cause winds to change direction, but not to increase or decrease in speed. D. It causes the winds to deflect to the right in the southern hemisphere.