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Which paragraph contains information about
a. saltwater intrusion?
b. problems caused by lowered water table?
c. types of aquifers?
d. problems caused by spreading of pollutants?
e. place where ground water can be stored?
Match the beginning of a sentence with an ending to produce a statement which is true according to the text.
| 1. Groundwater 2. Aquifers, the pore spaces of rocks, unconsolidated sediments 3. In the water table 4. Movement of polluted water within the aquifer 5. Artesian wells | c. flow freely without the need of a pump. d. are the places where groundwater is stored. e. makes the groundwater unusable. f. is any water found below the land surface. h. water pressure is equal to atmospheric pressure. |
Say whether the following statements are true or false.
1. The top of the upper unconfined aquifer is called the water table.
2. Groundwater renews itself quickly.
3. Unconsolidated sediments are known as permafrost and as soil moisture.
4. Groundwater may be tapped by the digging of wells.
5. Groundwater is a short-term reservoir of the water cycle.
6. Groundwater is a scarce resource.
7. Groundwater can form springs, oases or swamps.
8. All groundwater problems are caused by overextraction.
Complete the following table, using information from the text.
| Groundwater problem | Caused by |
| 1. Lowering of the water table. 2. 3. 4. 5. | 1. 2. 3. 4. 5. |
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