E-PolyLearning

16. The groundwater can become confined between two impermeable layers. This type of enclosed water is called
a. artesian
b. artesian well
c. unconfined groundwater
d. confined groundwater
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Answer: (a).artesian

17. The largest glaciers are
a. mountain glaciers
b. alpine glaciers
c. continental glaciers
d. piedmont glaciers
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Answer: (c).continental glaciers

18. The ionosphere includes
a. mesosphere
b. thermosphere
c. thermosphere and exosphere
d. thermosphere, exosphere and mesosphere
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Answer: (c).thermosphere and exosphere

19. The highest degree of concentration of mineral deposits are found in
a. northeastern zone
b. northwestern zone
c. southern zone
d. All of the above
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Answer: (a).northeastern zone

20. The group of minerals chemically containing hydrocarbons is
a. silicate group
b. organic group
c. oxide group
d. hydride group
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Answer: (b).organic group

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