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100
Can plants cause chemical weathering? true or false
As their roots grow in between cracks of rocks they release chemicals that help dissolve the rock and make room for them to grow.
100
Would soil form faster in a cold mountainous region or in hilly area with a dry climate?
Mountainous -Higher in the troposphere, colder it gets. More ice wedging occurs.
100
The hardness of soil is its ________?
Consistency
100
A soils acidity is measured by ______?
pH
200
Name 2 materials that help make up the organic material of soil.
Leaves, dead insects, animal waste
200
Name 2 of the factors of the formation of soil.
Biota, Parent Material, Topography, Time, Climate
200
This property of soil has to do with how well a plant will grow, this depends on the properties of the A-horizon.
Fertility
200
processes that change a rock’s composition
Chemical Weathering
300
Soil components that were once alive?
Organic Matter
300
This soil property determines the infiltration rate?
Texture (Size of soil particles)
300
This soil property determines how long it takes for water to soak into the soil?
Infiltration
300
This property of soil varies with the amount of moisture?
Consistency
400
Give me one example of mechanical weathering that you can observe in South Florida?
Animals burrowing. Plants growing between cracks of rocks or sidewalks. Abrasion near moving water (beaches, rivers).
400
Where does chemical weathering happen the fastest (it's still a slow process)?
Warm, wet climates
400
In a desert, which specific type of weathering (don't say just chemical or mechanical) helps form soil?
Abrasion
400
Processes that simply break rocks into smaller pieces
Mechanical weathering
500
Why is it important for there to be organic matter in soil?
The organic material holds moisture and nutrients that the plants need to grow.
500
How does climate effect chemical weathering?
The warmer the average temperatures and the more annual rainfall, the faster chemical weathering will happen.
500
In what climate is mechanical weathering most effective?
Areas with frequent drastic temp changes. (Ice Wedging)
500
Give me an example of chemical weathering we could see in South Florida?
Oxidation on monuments. Acid rain wearing down.
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