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
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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
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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
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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
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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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