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APSC 151 FINAL Questions And Answers
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  • APSC 151

When determining the risk of mass wasting in an area, which of the following will provide the most valuable information? ~ Analysis of air photographs Mineral life cycle: ~ Exploration, mining and milling, smelting and refining, manufacturing Average amount of mineral consumed in life time ~...

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  • August 5, 2024
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APSC 151 FINAL Questions
And Answers

Compared to the age of the Universe of about 14 billion years, the currently

accepted age of Earth is


about ________ years as determined by using radioactivity for dating rocks

and minerals.




A) 4.6 thousand


B) 4.6 billion


C) 5.4 million


D) 13.7 billion


✓✓✓✓~ B - 4.6 billion




The ________ division of the geologic time scale is an era of the Phanerozoic

Eon.

,A) Paleocene


B) Paleozoic


C) Permian


D) Proterozoic


✓✓✓✓~ B - Paleozoic




The Earth's core was formed from ________.




A) a massive nickel iron asteroid that was the nucleus upon which Earth

condensed




B) high density radioactive carbon




C) the left over nickel and iron that would not fit into the earlier formed crust

and mantle




D) molten iron and nickel that separated from silicates and sank due to its

higher density

,✓✓✓✓~ D - molten iron and nickel that separated from silicates and sank due to its higher

density




Pangaea was ________.




A) a large, ocean basin that opened in the Triassic and closed in the Paleocene




B) a large, Precambrian shield area in Africa and South America that broke

apart late in the Proterozoic Eon




C) a huge mountain range that formed when Africa pushed northward into

Europe in Eocene time




D) a super continent that formed in the late Paleozoic and broke apart in

Triassic time


✓✓✓✓~ D - a super continent that formed in the late Paleozoic and broke apart in Triassic

time

, The oceanic crust is made of mafic rock called ________ and is about

________ thick on average




A) basalt, 7 km


B) marine sedimentary rocks, 25 km


C) basalt, 70 km


D) granite, 35-40 km


✓✓✓✓~ A - basalt, 7 km




The composition of the upper mantle of Earth is thought to be




A) basalt


B) granite


C) peridotite


D) iron-nickel alloy


✓✓✓✓~ C - peridotite




Which one of the following statements is not correct?

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