335-340

Question 1

soil

Answer 1

uppermost layer of the earths crust, supports terrestrial plants, animals and microorganisms

Question 2

parent material

Answer 2

siol is born from rock that has been slowly brooken down

Question 3

weathering process

Answer 3

physical, rock is worn down smaller by weather

Question 4

topography

Answer 4

regions surface features, such as mountains/valleys

Question 5

soil organic material

Answer 5

litter, poop dead remains, animals/plants, microorganisms in stages of decomposition

Question 6

humus

Answer 6

black or dark brown organuc material that remains after decomposition has occured

Question 7

soil water

Answer 7

pores among and around soil particles filler with water 25%

Question 8

soil air

Answer 8

pores in soil filled with air 25%

Question 9

leahces

Answer 9

roots have them, pores?

Question 10

illuviation

Answer 10

deposition of leahced material in the lower layers of soil

Question 11

soil horizons

Answer 11

horizantal layers which soils are organized, from the surface to the underlying parent material

Question 12

soil profile

Answer 12

vertical section from surface to parent material showing the soil horizons

Question 13

O horizon

Answer 13

uppermost layer, rich in organic material, accumulation of plant littler

Question 14

A horizon

Answer 14

tpsoil, dark and rich in organic matter and humus, under O

Question 15

E horizon

Answer 15

havily leached, under A

Question 16

B horizon

Answer 16

accumulation of clay and nutrient minerls, lighter color, under E

Question 17

C horizon

Answer 17

weathered pieces of rock, often saturated with goundwater, under B

Question 18

solid parent material

Answer 18

bedrock, under C

Question 19

eosysten services

Answer 19

important environmental benifits that ecosystems provide people

Question 20

castingss

Answer 20

bits of soil that have passed through the gut of an earthworm are deposited on the soil service. butrients from lower leves are brough to top of soil

Question 21

mycorrhizae

Answer 21

relationship between fungi and roots of vascular plants halp plants absort soil nutrients

Question 22

mycelium

Answer 22

fungi partner extends into the soil much beyond its roots

Question 23

nutrient cyling

Answer 23

pathway of various nutrient minerals or emelets from the environment through organisms and back to the environment

Question 24

great green wall

Answer 24

many trees plantes to stop dust storms in china