Exam 3 part soils

Question 1

pedosphere

Answer 1

outermost layer of earth

interface of: biosphere, lithosphere, atmosphere, hydrosphere

Question 2

soil

Answer 2

mixture of fragmented and weathered grains of minerals and rocks, with air and water, and layering. all influenced by climate and living organisms.

Question 3

controls of soil formation

Answer 3

climate
relief
organisms
parent material
time

Question 4

soil components

Answer 4

minerals 45%
water 40%
air 30%
organic matter 5%

Question 5

soil profiles

Answer 5

O,A,E,B,C,R

Question 6

Soil importance

Answer 6

regulates/stores water
cycles nutirnets
filters pollutants
stores gases
supports ag
sustains plant life

Question 7

physical properties of soil

Answer 7

texture
structure
color

Question 8

pedon

Answer 8

naturally occurring clumped column representing the soil profile.

Question 9

texture

Answer 9

triangle thing

Question 10

structure

Answer 10

prismatic
platy
blocky
granular

Question 11

color

Answer 11

munsell color chart

Question 12

soil classifications determined by

Answer 12

soil properties, observable and measurable

orders and suborders

Question 13

orders

Answer 13

development weathering composition

Question 14

suborders

Answer 14

climate, moisture, parent material

Question 15

catena

Answer 15

regional sequence of soil profiles appearing in regular succession downslopes