NWR Soil Formation
star
star
star
star
star
Last updated over 5 years ago
8 questions
1
Which layer in the diagram below contains the most organic material?
Which layer in the diagram below contains the most organic material?
1
How is soil created from rock?
How is soil created from rock?
1
Approximately how many years does one centimeter of topsoil take to form?
Approximately how many years does one centimeter of topsoil take to form?
1
Which of the following is found in the greatest % (percent) of soil?
Which of the following is found in the greatest % (percent) of soil?
1
Which layer of a soil profile forms first from the bedrock?
Which layer of a soil profile forms first from the bedrock?
1
For the soil profiles below, label the horizons (A, B, or C) and the parent material in each of the soil profiles using the spaces provided next to each image.
For the soil profiles below, label the horizons (A, B, or C) and the parent material in each of the soil profiles using the spaces provided next to each image.
1
At the base of each profile, number the profiles according to the proper sequence of development.
At the base of each profile, number the profiles according to the proper sequence of development.
1
Match each soil profile (A,B, or C) to the graph that would most likely represent the profile. Write the letter of the matching profile in the space provided with each graph.
Match each soil profile (A,B, or C) to the graph that would most likely represent the profile. Write the letter of the matching profile in the space provided with each graph.