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Flashcards in soil regions Deck (22)
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1
Q

what are the 4 components of soil? (BAMM)

A
  • bacteria and organic materials
  • air
  • minerals
  • moisture
2
Q

what are bacteria and organic materials?

A

dead plants and animals decompose

3
Q

what is air?

A

small air pockets in soil allow roots to spread and soil to drain

4
Q

where do minerals come from?

A

parent rock deposited by wind, glaciers, rivers, etc

5
Q

what is moisture?

A

water taken up by plants necessary for survival and chemical, physical processes

6
Q

name the 4 layers of soil in descending order

A

humus
topsoil
subsoil
bedrock

7
Q

what is humus?

A

organic layer

leaf litter

8
Q

what is topsoil?

A

dark brown/black

nutrient rich

9
Q

what is subsoil?

A

organic layer

minerals

10
Q

what is bedrock?

A

where minerals form

11
Q

more pressure = _____ rock

A

harder

12
Q

what are the 3 main types of vegetation in canada?

A
  • tundra
  • forest
  • grasslands
13
Q

where is the tundra?

A

north

14
Q

how is the tundra marked?

A

by the tree line

15
Q

why are the tundra growing conditions bad?

A

permafrost

16
Q

what are the 2 types of forests in canada?

A
  • boreal

- taiga

17
Q

what kind of trees are in the north?

A

coniferous

18
Q

what kind of trees are in the south?

A

deciduous

19
Q

what are grasslands?

A

prairies and grass

20
Q

are there many trees in the grasslands?

A

no

21
Q

where are the deep root systems?

A

grasslands

22
Q

which area is drought resistant?

A

grasslands