1.0-1.10

Question 1

The quality of soil determines…

Answer 1

capacity of land to support plants, animals and society

Question 2

What are the 6 key roles of soil?

Answer 2

1.support plant growth
2.recycles nutrients and waste
3modifies atmosphere
4.habitat for organisms
5.used for building
6.water supply purification

PRAHBW

Question 3

What do plants gain from soil

Answer 3

physical support, water, protection from toxins, air, temperature moderation, nutrient elements

SWATTN

Question 4

How does soil provide physical support to plant

Answer 4

anchors it to the ground to stop it from falling over

Question 5

Ventilation in soil

Answer 5

accomplished via soil pores and maintains quality and quantity of air by allowing CO2 to escape and oxygen to enter root zone

Question 6

How can plants survive long periods without water

Answer 6

Through soil pores, they absorb and hold water where its later used by roots

Question 7

How does soil moderate temp. fluctuations

Answer 7

soil has insulating properties that protect the deeper portion of root system from extreme hot or cold
so the top of soil can be hot, but lower down the soil temp can be lower

Question 8

phytotoxic substances

Answer 8

chemicals that are toxic to plants

Question 9

fertile soil will provide a supply of…

Answer 9

dissolved mineral nutrients in amounts appropriate for plant growth

Question 10

in a world without recycling actions of soil…

Answer 10

plants and animals would have run out of nutrients

Question 11

How can soil help mitigate climate change?

Answer 11

some soils can accumulate large amounts of carbon as soil organic matter

Question 12

soil absorbswhat gases

Answer 12

oxygen and other gases like methane

Question 13

soil releases

Answer 13

carbon dioxide and nitrous oxide

Question 14

what can happen in dry soil areas?

Answer 14

soil particles can be picked up by winds and contribute to dust in atmosphere.

Question 15

What does the composition of our food depend on?

Answer 15

the health of the soil it was grown on

Question 16

where do many medicines come from?

Answer 16

soil!!!!!!!!!!!!!!!!!!!!!!!!

Question 17

many antibiotics are sourced from

Answer 17

soil

Question 18

What is the critical zone

Answer 18

outer layers of the planet where life, air, water and rocks interact

Book def: tops of tallest trees and bottom of groundwater

Question 19

lithosphere

Answer 19

world of rock

Question 20

atmosphere

Answer 20

air

Question 21

hydrosphere

Answer 21

water

Question 22

living things

Answer 22

biosphere

Question 23

pedosphere

Answer 23

soil

Question 24

What is the difference between” a soil” and “soils”

Answer 24

soil as a material and soilsas all the different kinds

Question 25

Regolith

Answer 25

crumbled rock on top of unweathered rock

Question 26

saprolite

Answer 26

soft decomposed rock

Question 27

soil pits are used for

Answer 27

to study soil

Question 28

Soil profile

Answer 28

showing the horizons

Question 29

horizon

Answer 29

a distinct layer of soil

Question 30

what is parent material

Answer 30

the deepest layers of soil which have been changed the least

Question 31

O horizons

Answer 31

organic top layers of soil

Question 32

weathering

Answer 32

process of rocks, minerals, soils breaking down at earths surface

Question 33

A horizons

Answer 33

layers nearest the surface dominated by mineral particles

Question 34

B horizons

Answer 34

underlying layer with accumulated materials

Question 35

C horizon

Answer 35

parent material, the least weathered part of soil

Question 36

E horizon

Answer 36

below a horizon and above B strongly leached

Question 37

leached

Answer 37

downward movement of dissolved plant nutrients

Question 38

What are the 3 phases of soil

Answer 38

Air, water, mineral

Question 39

In the 3 phases, what counts as soil solids

Answer 39

organic and mineral

Question 40

In the 3 phases of soil what makes up pore space

Answer 40

air and water, which are inversely proportional

Question 41

Voids

Answer 41

space or gap between soil particles

Question 42

what things happen in the voids

Answer 42

fluid flow (diffusion), root and microbial growth, weathering, chemical reactions, uptake of nutrients

Question 43

state factors of soil formation formula

Answer 43

s=f(cl,o,r,p,t)

Question 44

what does the s stand for in the s=f(cl,o,r,p,t) formula?

Answer 44

soil properties

Question 45

what does the f mean in s=f(cl,o,r,p,t)

Answer 45

function of

Question 46

what does the cl mean in s=f(cl,o,r,p,t)

Answer 46

climate

Question 47

what does the o mean in s=f(cl,o,r,p,t)

Answer 47

organisms

Question 48

what does the r mean in s=f(cl,o,r,p,t)

Answer 48

relief, topography (arrangement of features in an area)

Question 49

what does the p mean in s=f(cl,o,r,p,t)

Answer 49

parent material

Question 50

what does the t mean in s=f(cl,o,r,p,t)

Answer 50

time

Question 51

what does topo sequence refer to

Answer 51

what part are you in the hill slope

Question 52

The top of a hill is called the...

Answer 52

summit