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Earth Science SGA Review Flashcards | StudBud
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Earth Science SGA Review
Earth Science SGA Review
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SGA review for Earth Science Newnan High
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
What are the layers of the Earth by composition from the center to the surface?
mantle, crust, core
core, crust, mantle
core, mantle, crust
crust, mantle, core
2
How are carbon fossils formed?
From the remains of once living things
By burning coal
From ancient water sources
By evaporation
3
What % of the Earth is covered in water?
20%
70%
90%
50%
4
Fossils are unique to what type of rock?
Sedimentary
All rock types
Igneous
Metamorphic
5
The process by which an agent of erosion loses energy and drops the sediment it is carrying is?
Decompression
Deflation
Deposition
Density
6
A fracture in Earth along which movement has occurred is a __________.
Fault Line
Focus
Epicenter
Volcano
7
A divergent boundary of 2 continental plates results in new earth. Give one example.
Great Rift Valley in East Africa
The Andes in South America
The Himalayas
Rhine Valley in NW Europe
8
What % of our country's demand for electricity will be met by wind power in the next 50 years?
1-4%
16-20%
5-10%
11-15%
9
What is the most important agent of chemical weathering?
Trees
Ice
Sun
Water
10
Which of the following is the main force behind mass ground movements?
earthquakes
removal of vegetation
water
gravity
11
What type of boundary are the Himalayas?
Convergent (Oceanic-Continental)
Convergent (Continental/Continental)
Transform Fault
Divergent
12
What happens to a rock's mineral composition during mechanical weathering?
Make the rocks larger
Changes the rock's chemical composition
Adds oil to the rocks
Break rocks into smaller pieces
13
The mechanical break up of rock caused by the expansion of freezing water in cracks/crevices?
Frost Wedging
Glacier
Fossil Succession
Food Web
14
What types of rocks are formed when existing rocks are broken down into smaller pieces?
All rock types
Metamorphic
Igneous
Sedimentary
15
What powers the continuous rock cycle?
Earth's interior and the water cycle
Nitrogen cycle
Earth's interior and the sun
Water cycle
16
Are dark or light objects better radiators of heat?
Dark
Light
17
Which geologic time scale unit represents the longest interval of time?
Eras
Periods
Epochs
Eons
18
What % of Earth's water is fresh water?
@1%
@2%
@3%
@4%
19
Plants absorb and release water into the atmosphere through what process?
transpiration
evaporation
deposition
condensation
20
Why are all rock records incomplete?
Because we have no way to date them
Because we have no way to measure them
Because the rock cycle is continuous
Because new sedimentary rocks are continuously formed
21
The sun and planets formed from a rotating disk of dust and gases according to what hypothesis?
Nebular Theory
The Scientific Method
Theory of Plate Tectonics
Retrograde Theory
22
Which of the following is an agent of weathering of sedimentary rocks?
Wind
Water
Gravity
Ice
23
What % of Earth's water is salt water?
@75%
@97%
@80%
@25%
24
What is a major source of free oxygen in Earth's atmosphere?
Walmart
Photosynthesis
Chemosynthesis
25
Which of the following is a trigger of mass ground movements?
Over-steepened slopes
Water
Earthquakes
Removal of Vegetation
