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EAPS 112 Lecture Exam 1 Questions & Answers 2023/2024
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EAPS 112 Lecture Exam 1 Questions & Answers 2023/2024 Science - ANSWER-The knowledge or study of the natural world based on facts theorized based on experiments and observations. Multiple working hypotheses Who proposed it and when - ANSWER-Multiple working hypotheses was developed by T.C. C...

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  • July 13, 2023
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  • 2022/2023
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EAPS 112 Lecture Exam 1 Questions &
Answers 2023/2024
Science - ANSWER-The knowledge or study of the natural world based on facts theorized based on
experiments and observations.



Multiple working hypotheses

Who proposed it and when - ANSWER-Multiple working hypotheses was developed by T.C. Chamberlin
because there are multiple ways to interoperate scientific method and this can create multiple working
hypotheses until observations and experiments rule them down to one correct hypothesis.



Kentland Structure - when and what was its origin - ANSWER-An impact structure with the presence of
shatter cones and deformed bedrock that was determined to have been caused from an impact rather
than volcanic activity. It was formed less than 97 million years ago in Newton County, Indiana. The
impact area is about 7.24 km in diameter



What evidence proves the kentland structure was not the event of a cryptovolcanic event? - ANSWER-
Shatter cones and deformed bedrock concluded that the structure was caused by a meteor impact. The
formation of shatter cones is not present in a volcanic event because of the upward pressure as apposed
to the downward pressure from an impact.



Mineral - ANSWER-A naturally occurring crystalline solid or synthetic, chemically identical equivalent.



Name the five anion mineral groups - ANSWER-Silicates are minerals containing silica - most common
mineral.

Carbonates are minerals with carbonate ion.

Oxides are composed of hematite, corundum, and water ice.

Sulphides are composed of gypsum and barite.

Phosphates contain apatite and turquoise.



Rock - ANSWER-Composition of a combination of one or more minerals.

, Igneous rock textures - ANSWER-phaneritic - visible grains

Aphanitic - grains too small without magnification

Porphyritic larger grains surrounded by finer grained groundmass

Glassy - no grains

Vesicular - formed as water vapor and gases became trapped

Pyroclastic - volcanic ash



Igneous rock composition - ANSWER-Felsic - Light colored

Nonferromagnesian minerals - intermediate composition

Mafic - dark colored ferrmagnesian minerals



Intrusive igneous rock - ANSWER-Forms from magma injected into the crust of formed in place - granite,
gabbro, dirite



Extrusive igneous rock - ANSWER-Formed from lava being expelled on the surface - basalt, rhyolite,
andesite, obsidian



Intermediate igneous rock formation - ANSWER-Started formation from magma under the surface then
expelled onto the surface - porphyritic basalt



Foilated metamorphic rocks in order of metamorphic grade - ANSWER-Slate, Shale, Schist, Gneiss



Nonfoliated metamorphic rocks - ANSWER-Marble - limestone, sheen

Quartzite - quartz, darker

Hornfels - fine grained no specific composition



Regional metamorphism - ANSWER-Pressure over a larger area causing larger grained rocks



Contact metamorphism - cross section of occurrence - ANSWER-metamorphism due to magma which
causes fine grained rocks

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