QUESTION 1
Weathering is defined as taking place “in situ.” This means that weathering involves the transport of earth materialsinvolves the breakdown of materials in their original locationonly takes place certain seasons of the year
3 points
QUESTION 2
Acid rain results most directly in chemical weatheringphysical weatheringbiological weathering
3 points
QUESTION 3
What type of weathering does not result in a change in chemical form? chemical weatheringphysical weatheringbiological weathering
3 points
QUESTION 4
The formation of new iron oxide minerals in an iron-bearing rock can result from oxidationcarbonationfrost-wedging
3 points
QUESTION 5
Which human activity can accelerate weathering rates? road buildingair pollutionboth of the above
3 points
QUESTION 6
What essential natural resource is produced by weathering activity? watersoilair
3 points
QUESTION 7
A limestone statue slowly loses many of its features over time and becomes flat and smooth. This is likely because of physical weatheringchemical weatheringbiological weathering
3 points
QUESTION 8
Chemical weathering can increase physical weathering rates because it increases the exposed surface area. True False
2 points
QUESTION 9
The more jointed a rock is, the slower it weathers. True False
2 points
QUESTION 10
What is humus made of? tiny rock fragmentsliving plantsdecayed plant and animal materials
3 points
QUESTION 11
There are five main factors of soil formation. State what these are and explain how each one contributes to soil profile development. Path: pWords:0
4 points
QUESTION 12
Soils that are dominated by sand are called fine-texturedmedium-texturedcoarse-textured
3 points
QUESTION 13
Alkaline soils are most common in arid and semi-arid regionshumid areastemperate agricultural fields
3 points
QUESTION 14
Which of the following are the largest-sized particles in soil? sandsiltclay
3 points
QUESTION 15
Soil particles aggregate together into pedshorizonsprofiles
3 points
QUESTION 16
The parent material in a soil profile is called the O horizonB horizonC horizon
3 points
QUESTION 17
Ultisols are most likely found in dry climatesvery cold climateswarm, humid climates
3 points
QUESTION 18
Once nutrients enter the soil, they tend to stay there and are no longer considered a part of global nutrient cycles. True False
2 points
QUESTION 19
Most soil erosion is caused by windglaciersrunning water
3 points
QUESTION 20
Describe the connection between soil erosion and water quality and how water quality is affected by soil erosion. Path: pWords:0
4 points
QUESTION 21
Several U.S. laws of environmental protection limit activities that can cause soil erosion. What are four ways that human activities can lead to soil erosion? Explain how each of these affects the soil. Path: pWords:0
4 points
QUESTION 22
Leaving crop residue on the soil surface after harvest can remove nutrients from the soilreduce a need for chemical pesticidesreduce erosion and cut down on water pollution
3 points
QUESTION 23
Tall trees grown around agricultural fields can buffer the effects of windaccelerate soil erosion by blocking in the landprevent water runoff
3 points
QUESTION 24
Which of the following agricultural methods would likely lead to MORE sedimentation and accumulation of soil in local rivers and streams? terrace farmingconservation tillageintensive tillage
3 points
QUESTION 25
Which of the following is NOT a limiting factor for good agricultural land? strongly sloping landslow surface runoffcoarse-textured soil
3 points
QUESTION 26
Where do landslides happen in the United States? only along the Pacific coastonly along the Appalachian Mountain areain any of the 50 states
3 points
QUESTION 27
The rapid movement of material down a curved surface is called creepslumpsolifluction
3 points
QUESTION 28
Which of the following can cause a landslide to be very fast? steep slopehigh water contentboth of the above
3 points
QUESTION 29
Define soil creep and explain the conditions under which it normally happens. Path: pWords:0
4 points
QUESTION 30
Describe the differences and similarities between earth flows and mudflows. Path: pWords:0
4 points
QUESTION 31
How can landslides impact wildlife? pollute local water bodiesremove forests necessary for habitatboth of the above
3 points
QUESTION 32
Landslides are most common in mountainous areasthe Central Plains of the U.S.shorelines of the southeast U.S.
3 points
QUESTION 33
Soil creep is an example of a rapid mass movement process. True False
2 points
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