SCIENCE SOIL (novemeber)

Question 1

it is the loose surface material that covers most land.

Answer 1

SOIL

Question 2

the study of different kinds of soils

Answer 2

PEDOLOGY

Question 3

it consists of what materials the soil has

Answer 3

-rock fragments
-mineral grains
-organic debris
-the presence of moisture

Question 4

it plays a vital role in soil formation

Answer 4

WEATHERING

Question 5

it is a region of loose unconsolidated rock and dust that sits atop a layer of bedrock

Answer 5

REGOLITH

Question 6

an importang product of weathering and a mixture of weathered rock fragments, organic materials, grainsof mineral

Answer 6

SOIL

Question 7

biologically active medium and a key component in plant growth

Answer 7

REGOLITH

Question 8

pedogenesis

Answer 8

SOIL FORMATION

Question 9

development of soil through the process pf pedogenesis

Answer 9

1) weathering begins, disintegrating- organic matter, parent material- mineral fragments and organic matter, horizon A, Horizon C- greater plant growth, horizon A, Horizon B, Horizon C

Question 10

it is a slow process which is almost 3cm per hundred of years

Answer 10

SOIL FORMATION

Question 11

formed when the solid rock breaks up and the poorest material in the soil

Answer 11

BEDROCK

Question 12

contains small rock particles and delayed matter

Answer 12

TOPSOIL/ HUMUS

Question 13

beneath the topsoil and made up mostly of pebbles

Answer 13

SUBSOIL

Question 14

what are the soil layers

Answer 14

-horizon O
-horizon A
-horizon E
-horizon B
-horizon C
-bedrock