Weathering, Erosion, Deposition, Soil Assessment Question Preview (ID: 39139)


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Construction and development often results in
a) loss of pore space
b) loss of soil
c) increase in humus
d) increase in plant cover

Which of the following best describes why soil is a necessary resource?
a) soil naturally forms very quickly
b) soil supports the growth of plants
c) soil gains organic materials when rocks break down
d) soil makes it difficult for microorganisms to live

Weathered rock particles and organic matter typically make up a large portion of the
a) the C Horizon, which is the deepest layer of soil
b) the B Horizon, which contains material washed down from above
c) the A horizon, which is the upper layer of the soil
d) the layer of material on the surface of the ground

You are examining a soil sample that is black in color. It is likely that your sample
a) has a high acid content
b) does not have any pore space
c) consists entirely of sand
d) has a high humus content

By breaking down rocks with their roots, plants commonly cause
a) chemical weathering
b) mechanical weathering
c) desertification
d) terracing

Chemical weathering changes rocks through
a) physical forces that break down rock
b) reactions that change the rock's composition
c) abrasion that wears rocks down
d) exfoliation that causes flaking

The physical or chemical breakdown of rocks is called
a) erosion
b) hydration
c) crystallizing
d) weathering

Acid rain causes chemical weathering by
a) dissolving minerals in rocks
b) wearing away the surface of rocks
c) tumbling rocks against eachother
d) freezing and expanding in rocks

What are the two main properties of soil?
a) air and clay
b) decayed matter and weathered rocks
c) water and sand
d)

Sediment is placed in new locations through a process called
a) mass wasting
b) deposition
c) precipitation
d) longshore current

Evidence that chemical weathering is observing a rock that
a) has turned red and changed the rock's composition
b) has broken into smaller pieces
c) pebbles are warped from heat
d) both A and B

To increase a soil's pore space(loosen up the soil), a farmer would add
a) Silt
b) Clay
c) Sand
d) A and B

Why is the top layer of soil important? It is rich in...
a) pore space
b) minerals
c) clay
d) organic matter

What would happen if decayed matter were not part of the soil profile?
a) the soil would be less porous
b) the soil would erode more
c) the plants would be healthier
d) the plants would not grow

Why is loamy soil important to farmers?
a) it is rich with minerals
b) it is rich with organic matter
c) it is permeable
d) all of these

What is Mrs. Hurst's favorite candy?
a) Skittles
b) Peanut Butter M and Ms
c) Laffy Taffy
d) Snickers

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