front 1 If a soil has 30% sand, 40% silt, 30% clay; what's it's texture? | back 1 Clay Loam |
front 2 True/False: All Loam soils have at least 3% | back 2 False bc organic matter doesn't affect texture |
front 3 True/ False: All Loam soils have at least 8% clay in them. | back 3 True |
front 4 Which soil order has permafrost? | back 4 Gelisols |
front 5 Which soil order has a distinct eluviated horizon and is commonly found under evergreen forests? | back 5 Spodosols |
front 6 Which soil order is commonly associated with extreme weathering and often lacks distinct horizons? | back 6 Oxisols |
front 7 Take a chunk of moist soil that has a mass of 480g and after drying in the oven overnight it reaches a constant a mass of 420g. The total volume for this soil chunk is 300 cm3, what is the soil’s BD? | back 7 1.4 g/cm3 |
front 8 Take a chunk of moist soil that has a mass of 480g and after drying
in the oven | back 8 1.5 g/cm3 |
front 9 Take a chunk of moist soil that has a mass of 480g and after drying
in the oven overnight it reaches a constant a mass of 420g. The total
volume for this soil chunk is 300 cm3, what is the soil’s BD? After
compacting the soil chunk, its resulting total volume is 280 cm3 What
is the soil’s resulting BD? | back 9 1.5 g/cm3 |
front 10 Assume that you have two soils: a loamy sand and a clay loam, both with the same bulk density. Which of these soils has more porosity? | back 10 Neither. They are the same |
front 11 When a soil is compacted, what happens to its porosity? | back 11 It Decreases |
front 12 When a soil is compacted, what happens to its particle density? | back 12 It Remains unchanged |
front 13 If a soil contains 16% organic matter (based on dry weight),
what | back 13 A-horizon |
front 14 Which horizon(s) is the “subsoil”? | back 14 B-horizon |
front 15 Which horizon(s) is the “substratum”? | back 15 C-horizon |
front 16 Which of the following biomes is/are NOT characterized by
a | back 16 Temperate Grassland |
front 17 Which biome(s) tends to have soils with high levels
of | back 17 Temperate Desert |
front 18 Which of the following sequences represents the correct order
for | back 18 boreal forest < temp. deciduous forest < tropical rainforest |
front 19 Which parent material was deposited by moving, melt-water streams in front of the receding glacier? | back 19 Outwash |
front 20 Which parent material is dense and poorly sorted? | back 20 Basal Till |
front 21 Which diagnostic horizon is directly associated with an eluviated horizon? | back 21 Albic horizon |
front 22 Which diagnostic horizon is directly associated with an accumulation of illuviated clay material? | back 22 Argillic horizon |
front 23 Which diagnostic horizon is present when there is at least 8” (20 cm) of accumulated organic materials? | back 23 Histic Epipedon |
front 24 What diagnostic subsurface horizon would you expect to find in an Inceptisol but not in an Entisol? | back 24 Cambic horizon |