Weathering And Soil Question Preview (ID: 28516)


Weathering, Mechanical, Chemical, Soil Horizon, Humus, Decomposer. TEACHERS: click here for quick copy question ID numbers.

Which of the following are decomposers?
a) worms
b) bacteria
c) mushrooms
d) worms, bacteria, AND mushrooms

Which of the following is NOT a characteristic used to describe soil?
a) Fertility
b) Texture
c) pH
d) Temperature

Humus is found in which horizon(s)?
a) A Horizon
b) B Horizon
c) C Horizon
d) A and B Horizons

The C horizon forms as bedrock begins to weather. The rock breaks up into small particles.
a) True
b) False
c)
d)

The A horizon is also known as _____________.
a) topsoil
b) subsoil
c) bedrock
d) none of these are correct

The B horizon is also known as _____________.
a) topsoil
b) subsoil
c) bedrock
d) none of these are correct

Water is an agent of _______________.
a) Mechanical Weathering
b) Chemical Weathering
c) BOTH mechanical and chemical weathering
d) NEITHER mechanical nor chemical weathering

Acid Rain is an agent of ______________.
a) Mechanical Weathering
b) Chemical Weathering
c) BOTH mechanical and chemical weathering
d) NEITHER mechanical nor chemical weathering

Living Organisms that produce weak acids are agents of _______________.
a) Mechanical Weathering
b) Chemical Weathering
c) BOTH mechanical and chemical weathering
d) NEITHER mechanical nor chemical weathering

Oxygen is an agent of ________________.
a) Mechanical Weathering
b) Chemical Weathering
c) BOTH mechanical and chemical weathering
d) NEITHER mechanical nor chemical weathering

Carbon Dioxide is an agent of ___________.
a) Mechanical Weathering
b) Chemical Weathering
c) BOTH mechanical and chemical weathering
d) NEITHER mechanical nor chemical weathering

Abrasion is an agent of ___________.
a) Mechanical Weathering
b) Chemical Weathering
c) BOTH mechanical and chemical weathering
d) NEITHER mechanical nor chemical weathering

Plant Growth is an agent of ___________.
a) Mechanical Weathering
b) Chemical Weathering
c) BOTH mechanical and chemical weathering
d) NEITHER mechanical nor chemical weathering

Release of Pressure is an agent of ____________.
a) Mechanical Weathering
b) Chemical Weathering
c) BOTH mechanical and chemical weathering
d) NEITHER mechanical nor chemical weathering

Freezing and Thawing is an agent of __________.
a) Mechanical Weathering
b) Chemical Weathering
c) BOTH mechanical and chemical weathering
d) NEITHER mechanical nor chemical weathering

Animal Actions is an agent of ____________.
a) Mechanical Weathering
b) Chemical Weathering
c) BOTH mechanical and chemical weathering
d) NEITHER mechanical nor chemical weathering

______________ means that a material is full of tiny, connected air spaces that allow water to seep through it.
a) Permeable
b) Abrasion
c) Frost Wedging
d) Oxidation

____________ refers to the wearing away of rock by rock particles carried by water, ice, wind, or gravity.
a) Permeable
b) Abrasion
c) Frost Wedging
d) Oxidation

___________ is the process of water seeping into cracks in rocks and expanding as it freezes causing the cracks to widen and the rock to fall apart.
a) Permeable
b) Abrasion
c) Frost Wedging
d) Oxidation

Iron combines with oxygen in the presence of water in a process called _________.
a) Permeable
b) Abrasion
c) Frost Wedging
d) Oxidation

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