Social Studies, 29.05.2020 20:57, tatilynnsoto17

47)
Sample Earthworms Humus(decomposed organic matter excreted by earthworms) Water retention Plant growth
1 Absent Absent Moderate Moderate
2 Present Rich in humus High High

William compared two soil samples to check soil’s ability to support the growth of plants. He had read that plants grow best in soil rich in humus. The experimental data is summarized in the table.

What conclusion can be BEST drawn from the data?
A) Soils rich in humus improve plant growth.
B) Earthworms do not improve the soil’s humus content.
C) Plants will not grow in soils that do not have earthworms.
D) The growth of plants is poor in soil that has decomposed organic matter.

Answers: 2

Show answers

Other questions on the subject: Social Studies

Social Studies, 21.06.2019 16:00, tessalopezgarcia2345

Why should historians question edward ennis? a. they should not. ennis told the truth. b. ennis alerted his superiors to the existence of secret evidence but, when they ignored it, ennis did not make the evidence public. he remained silent. c. ennis made up his secret evidence d. none of the above

Answers: 2

continue

Social Studies, 21.06.2019 21:10, Teenabrewer28

Select the correct answer. assume that you are a member of a special interest group that wants to raise taxes on certain items. who would you present your idea to if you wanted it to be proposed as a bill? a. a supreme court justice b. the president c. the american people d. a senator e. a member of the house

Answers: 1

continue

Social Studies, 22.06.2019 14:10, barisege4842

Which of the following statements about the effects of subliminal stimuli is most accurate? subliminal stimuli have no effect on attitudes or behavior. subliminal stimuli can lead people to vote for political candidates they do not support. subliminal exposure to thirst-related words can lead thirsty people to drink more. subliminal stimuli can lead people to violate deeply held values.

Answers: 2

continue

Social Studies, 22.06.2019 19:00, Jasten

What are the most populous and least populous areas of russia? and why are some areas more heavily populated than others?

Answers: 1

continue

Do you know the correct answer?

47)
Sample Earthworms Humus(decomposed organic matter excreted by earthworms) Water retention...