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Earth Space Unit 2 Flashcards | StudBud
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Earth Space Unit 2
Earth Space Unit 2
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Questions
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Answers
1
The rate of soil erosion depends on _____.
all of the above
climate
slope steepness
the type of vegetation
2
What is karst topography?
Mountains formed by chemical deposition
River valleys
Caves and sinkholes formed by dissolved underground rock
Underground vaults created for a nuclear disaster
3
Differential weathering is ___
Another word for chemical weathering
When rocks do not weather uniformly
Another word for mechanical weathering
A combination of chemical and mechanical weathering
4
A soil profile consists of a number of
Layers
Level
Horizons
Zones
5
The primary force behind all mass movements
wind
oil
water
gravity
6
Types of mass movements
Rockfalls
Mudslides
Avalanches
Soil creep
7
Chemical weathering ____.
none of above
occurs when chemical reactions occurs like dissolving
is caused by freezing and thawing
breaks apart rocks by physical processes
8
The top or surface layer of soil in a soil profile is the:
Parent material
B horizon
C horizon
A horizon
9
In this cavern, which process most likely caused these structures to form?
Weathering by wind
Deposition of minerals
Erosion by fast moving water
Decrease in temperature
10
How do sinkholes form?
Pollution
Collapse of underground caves
Erosion on the surface
Mining
11
Sheet glaciers…
don't exist
Are more common than mountain glaciers
cover large areas of land
Are smaller than mountain glaciers
12
Porosity is a measure of _________in a rock or sediment
empty space
water
ingredients
colors
13
A body of rock that stores groundwater is called
recharge zone
aquifer
springs
rivers
14
The bottom layer of the soil profile is...
Subsoil
Bedrock
Topsoil
Humus
15
Mechanical weathering ____.
breaks apart rocks by physical processes
none of the above
occurs when iron is exposed to oxygen and water
occurs when chemical reactions occurs like dissolving
16
Karst Topography
When they have to add more minerals to make it more potant
To have removal to rocks
Surface features caused by the dissolution of lime stone
Factors in a rock where they have to remove a layer of it
17
Valley glaciers...
are on the tops of mountains
are as wide as continental glaciers
form in areas already carved by streams
flatten the landscape
18
What is rock permeability?
The type of rock (e.g. granite, clay)
How much water a rock can hold
The mass of the rock
How well water can flow through a rock
19
What is a soil profile?
My name
A layer of dirt
A vertical display of the layers of soil
The soil's short bio on musical.ly
20
Which crystalline formations are on cave ceilings; stalagmites or stalactites?
stalagmites
stalactities
21
Why did these caverns and sinkholes form?
The bedrock chemically reacted with acidic groundwater
Crustal uplift formed gaps in the bedrock
Glacial deposits altered the shape of the bedrock
The bedrock contained large amounts of oxygen and silicon
22
Mass movements like creep, slump, rockslide, and mudflow are caused by ____________?
wind
gravity
water
glaciers
23
The B horizon of a soil profile contains soil that has a lot of clay minerals. It is the:
bedrock
humus
subsoil
topsoil
