Unit 4 Test Review Question Preview (ID: 42035)

Unit 4: Layers Of The Earth, Plate Tectonics, Soil Formation, Soil Stewardship. TEACHERS: click here for quick copy question ID numbers.

How do earthworms, fungi and bacteria help with soil formation?
a) Mix-up the soil
b) They are decomposers
c) They break up bedrock
d) They move parent material to the roots

What layer of soil is humus most abundant?
a) Topsoil
b) Subsoil
c) Parent Material
d) Bedrock

Oxygen (chemical weathering) creates what on rocks?
a) Lichens
b) Acids
c) Plant Growth
d) Rust (reddish spots)

The process of breaking down rocks
a) Weathering
b) Erosion
c) Farming
d) lithification

The idea of preserving and protecting soil
a) Erosion
b) Irrigation
c) Soil conservation
d) Nutrient replenishing

The type of rocks made by heat and pressure
a) Sedimentary
b) Extrusive Igneous
c) Metamorphic
d) Intrusive Igneous

Which types of rocks are made when magma or lava cools?
a) Igneous
b) Metamorphic
c) Sedimentary
d) Bedrock

How are sedimentary rocks formed?
a) Tiny pieces of rock
b) Heat and pressure
c) Cooling of magma
d) Soil formation

Permeable means
a) breaking down of rocks
b) allows liquids or gasses to pass through
c) movement of rocks
d) allows light to pass through

The biggest part of soil is
a) Organic matter
b) Rocks or minerals
c) Air
d) Water

The basic components of soil are
a) Minerals, air, water
b) Minerals, organic matter, water, air
c) Rocks, air, water
d) Rocks and organic matter

The reason the tectonic plates move
a) convection in the mantle
b) conduction in the mantle
c) convection in the crust
d) conduction in the crust

The Earth's thickest layer
a) Crust
b) Mantle
c) Outer Core
d) Inner Core

The inner core is under extreme pressure making it
a) Solid
b) Liquid
c) Gas
d) Plasma

Which type of boundary creates folded mountain ranges?
a) convergent
b) divergent
c) transform

Which type of boundary creates faults and earthquakes?
a) Convergent
b) Divergent
c) Transform

How does organic fertilizer benefit soil?
a) Adds nutrients quickly
b) Adds nutrients slowly, but over a long period of time
c) Adds more weathered rock to the soil
d) Adds water and air into the soil

What is the purpose of wind breaks?
a) To add nutrients to the soil
b) To prevent soil erosion
c) To prevent animals from digging the soil up
d) To add organic matter to the soil

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