Soil Study guide

What are the components of soil?

• Air, water, minerals, rocks, and leaves

• leaves, decomposed organisms, rocks, inorganic materials, organic material, water, and air

• Minerals, rocks, inorganic materials, organic material, and water.

• Minerals, rocks, inorganic materials, organic material, water, and air

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Where do minerals, that form in the soil, come from?

• Weathering

• Nothing

• Erosion

• trash

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Why is water such an important component of soils?

• Because we all need water, it is only necessary for soil to need it too!

• The soil needs to evaporate

• It helps minerals decompose in the soil.

• It allows formation and provides nutrients.

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There are approximately how many different types of soil in the United States?

• 3 types = Sandy, Silty, clay

• 3 types = Sand, dirt, clay

• 5 types = Sand, clay, geliols, altisols, peatly

• 5 types = Sandy, silty, clay, peatly, and saline

How does climate affect soil formation?

• Temperature can only speed up chemical reactions.

• Temperature speeds up or slows down chemical reaction.

• Temperature can only slow down chemical reactions.

• None of the above

What is "relief" and how does it affect soil formation?

• Relief is when you are done with a sickness and you get a good feeling.

• Relief is topography, just that.

• Topography influences sunlight hours, water runoff, temperature, erosion, and inorganic material buildup

• Topography influences sunlight hours, water runoff, temp, erosion, and organic material buildup.

How can time affect soil?

• It causes just more soil to form

• It causes just soil to be weathered

• Older soils are less affected than younger ones

• Older soils are more weathered that younger ones.

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How is the A Horizon different from the O Horizon?

• No leaf litter but doesn't contain mineral particles.

• Contains leaf litter but doesn't contain mineral particles.

• No leaf litter but does contain mineral particles.

• Has leaf litter but does contain mineral particls

What is the common process occurring in the B Horizon?

• Photosynthesis

• Minerals are decomposited in this layer

• Minerals are NOT decomposited in this layer

• qwerty

How are C & R Horizons related?

• Both are composed of nothing but bedrock and nothing else

• Both are composed of plant roots and sediment

• Both are composed of mainly bedrock and plant roots don't penetrate this layer

• Both are composed of mainly bedrock and plant roots do penetrate this layer