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Pinnacle 5 January MT Review

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  • What is soil used for?
    to support th growth of plants
    to purify water
    all of these
    to shelter animals
  • In dry regions, what can overgrazing and clearing of land for farming lead to?
    desertification
    plowing
    tillage
    crop rotation
  • What is the main component of soil?
    rock particles
    humus
    water
    air
  • Which is NOT a method of conserving soil?
    crop rrotation
    contour planting
    desertification
    windbreaks
  • Which human activity does NOT directly affect soil?
    farming
    hunting
    mining
    construction and development
  • contour plowing
    reduce number of times soil is tilled
    when sulfide minerals react with air and water
    plowing along curves or contours of slopes
    flat, steplike areas built on a hillside to hold rainwater
  • Which is true of mass wasting?
    it often takes place on flat lands
    it only occurs in tropical climates
    it never occurs gradually
    it can be triggered by heavy rain or earthquakes
  • desertification
    open pits by removal of soil from surface of the ground
    when animals eat large amounts of land cover
    the cleaning and purifying of soil
    desert conditions in areas where plant cover was destroyed
  • How is texture of the soil determined?
    the size of the weathered rock particles
    the pore space
    the amount of water
    the amount of air
  • What is true of rockfalls but not rockslides?
    a large mass of rock slides as a unit down a slope
    rockfalls often take place in high mountains
    individual blocks of rock drop suddenly down a slope
    rockfalls are an example of mass wasting of rock
  • How do windbreaks help conserve soil?
    they block sunlight from destroying soil
    they keep animals away
    they stop water from draining out
    they stop wind from blowing away soil
  • What makes up debris?
    water, soil, rocks, and plants
    soil, rocks, and ice
    water and soil
    soil, rocks, plants
  • Which is evidence of creep?
    large amounts of mud flowing down a mountainside
    leaning fences
    sudden movement of rocks
    volcanic eruptions
  • Why are the coastal regions of California dangerous?
    The creep there is fast moving
    The cliffs are unstable
    There are lots of mudflows
    There are lots of landslides
  • What kind of terrain do landslides, rockslides, and mudflows all occur on?
    volcanoes
    canyons
    mountainsides
    flat land
  • windbreaks
    when sulfide minerals react with air and water
    flat, steplike areas built on a hillside to hold rainwater
    plowing along curves or contours of slopes
    planting trees between fields to reduce soil carried off
  • Which is NOT one of the main three ways erosion moves sediment?
    water
    rock
    wind
    ice
  • What can happen after a mountain slope collapses?
    it can cause an earthquake
    it can form a volcano
    it can cause telephone poles to lean slightly
    it can cause mass movements of debris
  • The breakdown of rock by acidic water is an example fo
    mechanical weathering
    oxidation
    desertification
    chemical weathering
  • Which is NOT a form of mechanical weathering?
    pressure release
    ice wedging
    dissolving
    abrasion
  • Which mass wasting is the slowest?
    creep
    rockslide
    slump
    mudflow
  • conservation tillage
    the recycled nutrients after being broken down
    when sulfide minerals react with air and water
    plant different crops on the same field in different years
    reduce number of times soil is tilled
  • What can bad farming practices lead to?
    increase in predators
    overpopulation
    soil loss
    loss in flavor
  • A lot of soil is dug up at construction sites. What can this lead to?
    the soil is thrown out
    the soil can go into rivers and lakes and cause flooding
    the soil is brought to farms to replace old soil
    the soil is used to keep buildings in place
  • Which of the following is true of creep?
    it happens too slowly to be seen
    a type of mass movement that you are least likely to see
    it c\occurs faster when the soil is dry
    it always occurs at the same rate
  • Which is NOT true of mudflows?
    it can occur in mountain canyons and valleys after heavy rai
    it can occur on active volcanoes
    it is an example of mass wasting of rock
    it consists of debris with large amounts of water
  • Which is NOT a type of mass wasting?
    blizzards
    mudslides
    rockslides
    creep
  • erosion
    weathered particles are picked up and moved to another place
    when sediment is put in a new location
    a sudden fast movement of rock and soil
    the downhill movement of masses or rock and soil
  • Which can cause mudflows?
    wind pushing on loose rocks
    volcanic eruptions
    ice loosening rocks
    construction of highways making slopes unstable
  • Which reacts with rain water to help dissolve rocks?
    oxygen
    water
    carbon dioxide
    rust
  • overgrazing
    desert conditions in areas where plant cover was destroyed
    when animals eat large amounts of land cover
    the recycled nutrients after being broken down
    the cleaning and purifying of soil
  • How do microorganisms help plants?
    they provide plants with nitrogen
    they provide plants with oxygen
    they provide plants with carbon dioxide
    they provide plants with water
  • What is similar about terracing and contour plowing?
    they both are used on sloping land
    they both use different crops to conserve nutrients
    they both include trees
    they both reduce the amount of plowing
  • Which is NOT a part of soil?
    air
    water
    humus
    fertilizer
  • landslide
    the downhill movement of masses or rock and soil
    when sediment is put in a new location
    weathered particles are picked up and moved to another place
    a sudden fast movement of rock and soil
  • terrace
    planting trees between fields to reduce soil carried off
    flat, steplike areas built on a hillside to hold rainwater
    reduce number of times soil is tilled
    plowing along curves or contours of slopes
  • Why is soil an important resource?
    it is food for animals
    it helps create farms
    it helps fill in space for development
    helps plant growth, purifies water, and recycles nutrients
  • What happens with the soil when strip mines are dug?
    soil is not affected
    soil is moved to a previous mining spot
    plants and soil are removed
    soil is moved but then put back when done
  • mass wasting
    the downhill movement of masses or rock and soil
    when sediment is put in a new location
    weathered particles are picked up and moved to another place
    a sudden fast movement of rock and soil
  • crop rotation
    plant different crops on the same field in different years
    reduce number of times soil is tilled
    the recycled nutrients after being broken down
    desert conditions in areas where plant cover was destroyed
  • deposition
    the downhill movement of masses or rock and soil
    a sudden fast movement of rock and soil
    weathered particles are picked up and moved to another plac
    when sediment is put in a new location
  • Which kind of climate speeds up chemical weathering?
    hot
    cold
    mild
    chilly
  • contour plowing, strip-cropping, and terracing are conservation methods made to reduce the
    acidity in soil
    activity of microorganisms
    runoff water
    pore space in soil
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