Topic Test Answers

Which of the following properties of soil helps in absorbing contaminants from the soil?

Which of the following soil properties is not influenced by microorganism activity?

Soil fertility is best described as being dependent upon _______.

The presence of organic material in soil makes it more productive for plant growth.

How is over-irrigation damaging to soil?

Which of the following statements about horizons is true?

Which of the following methods of agriculture is the most reliant upon technology and automation?

Which of the following is not true concerning cover crops?

Which of the following factors does not affect soil formation?

Microorganisms and humus have little impact on soil health.

Permafrost (gelisol) is considered a hearty, robust soil type.

Healthy soil depends on _______.

Decomposition of plant and animal matter present in soil is largely due to soil microorganisms.

Soil horizons are defined by physical features.

Where are the effects of soil salinization most likely to be seen?

Which of the following will be most influenced by the amount of organic material?

Humus creates good soil tilth, which is an indirect benefit of microorganism action.

Which of the following is the most damaging method of soil remediation?

The relationship between bacteria and legumes that results in nitrogen is best described as _______.

There is no direct way to reduce soil compaction caused by agricultural practices.