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NWR Soil Formation

Last updated over 6 years ago

8 Nsɛmmisa

1

1

1

1

1

1

1

1

Asemmisa {{asɛmmisaAhyɛnsode}}

6.

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.

Asemmisa {{asɛmmisaAhyɛnsode}}

7.

At the base of each profile, number the profiles according to the proper sequence of development.

Asemmisa {{asɛmmisaAhyɛnsode}}

8.

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.

Asemmisa {{asɛmmisaAhyɛnsode}}

1.

Which layer in the diagram below contains the most organic material?

A

B

C

the bedrock

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

How is soil created from rock?

Physical weathering without chemical weather

chemical weathering without physical weathering

erosion without weathering

weathering without erosion

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

Approximately how many years does one centimeter of topsoil take to form?

110-400 years

10 - 40 years

1000 - 4000 years

10,000 - 40, 000 years

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

Which of the following is found in the greatest % (percent) of soil?

Mineral matter

Organic matter

Water

Air

Asemmisa {{asɛmmisaAhyɛnsode}}

5.

Which layer of a soil profile forms first from the bedrock?

A horizon

B horizon

C horizon

humus