Homework answers / question archive / Question 1 0 / 1 pts   In the illustration above, which soil horizon contains the most organic matter?    B     R     E     C     O     A     Question 2 1 / 1 pts   The “R” soil horizon consists of ______

Question 1 0 / 1 pts   In the illustration above, which soil horizon contains the most organic matter?    B     R     E     C     O     A     Question 2 1 / 1 pts   The “R” soil horizon consists of ______

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Question 1

0 / 1 pts

 

In the illustration above, which soil horizon contains the most organic matter?

  

B

   

R

   

E

   

C

   

O

   

A

 

 

Question 2

1 / 1 pts

 

The “R” soil horizon consists of ______.

  

fossils and petroleum

   

bedrock

   

organic matter

   

regolith

 

 

Question 3

1 / 1 pts

 

Which soil horizon contains the most accumulated
minerals?

  

O

   

C

   

A

   

R

   

B

   

E

 

 

Question 4

1 / 1 pts

 

Leaf litter is mostly found in which horizon?

  

R

   

E

   

C

   

A

   

O

   

B

 

 

IncorrectQuestion 5

0 / 1 pts

 

The accumulated minerals in Question 3 originate from (leach out of) which soil horizon?

  

O

   

C

   

E

   

A

   

B

   

R

 

 

Question 6

8 / 8 pts

Match each soil description with its name:

 

Question 7

1 / 1 pts

A “clump” of soil made of individual particles that naturally stick together is called a ______.

  

colloid

   

column

   

prism

   

ped

 

 

IncorrectQuestion 8

0 / 1 pts

A soil particle smaller than 0.1 micrometers in diameter is called a ______.

  

prism

   

column

   

colloid

   

ped

 

 

Question 9

1 / 1 pts

The ability of soil to transmit water is referred to as soil ______.

  

porosity

   

permeability

   

structure

   

texture

 

 

Question 10

1 / 1 pts

Porosity is a measure of the soil's capacity ______.

  

to hold air and water

   

clump together

   

resist water soaking in

   

to soak up water

 

 

IncorrectQuestion 11

0 / 1 pts

Soil with a pH between 8 and 14 is described as ______.

  

neutral

   

pH balanced

   

acidic

   

alkaline

 

 

Question 12

1 / 1 pts

The most important mineral found in a calcic hardpan is ______.

  

carbon

   

sand

   

humus

   

calcium carbonate

 

 

Question 13

1 / 1 pts

A soil which has an even mixture of clay, silt, and sand is called ______.

  

silty

   

gravelly

   

sandy

 

a loam