1- In many areas with karst terrain, people use sinkholes as places to dump garb

Question

1- In many areas with karst terrain, people use sinkholes as places to dump garbage. What effect might this practice have on the groundwater supply?

Select one:

a. It could contaminate the groundwater in unconfined aquifers only.

b. None; sinkholes are not connected to groundwater sources.

c. It clogs the sinkholes so that water cannot percolate into the groundwater.

d. It could contaminate the groundwater in any or all aquifers in the area.

2- You are drilling a water well when you hit water at a much more shallow level than you expected. What have you likely found?

Select one:

a. an aquiclude

b. a natural spring

c. an artesian aquifer

d. a perched aquifer

Explanation / Answer

1. In many areas with karst terrain, people use sinkholes as places to dump garbage. What effect might this practice have on the groundwater supply?

Answer:

d. It could contaminate the groundwater in any or all aquifers in the area.

Explanation:

Sinkholes can also threaten water supplies by draining unfiltered water from streams, lakes and wetlands directly into the aquifer i.e underground water supply.

2. You are drilling a water well when you hit water at a much more shallow level than you expected.

Answer: c. an artesian aquifer

Explanation:

water rises in pipe to a point where the pressure is equal to the weight of water putting it under pressure.

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