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Question
Which of the following best describes the role of biological activity in soils development?A) Broadleaf trees tend to increase the alkalinity of soil, whereas needleleaf trees increase the acidity.
B) Earthworms increase soil porosity and contribute to soil movement and organic content.
C) Plant roots provide channels for air and water movement in soils.
D) All organisms living in, on, and over the soil, influence soil development and characteristics: they can influence the pH, the organic matter, chemical content, and biological content of soils.
Answer
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Related questions
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The key idea behind the scientific method is
A) the use of intuition in testing theories.
B) an appeal to supernatural explanations when natural explanations have not yet been found for a phenomenon.
C) the testing of ideas through controlled observations and experiments.
D) unbridled speculation about the world.
Q:
Which of the following is the most strongly supported by experimental and observational evidence?
A) speculation
B) hypothesis
C) educated guess
D) theory
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A) location
B) place
C) human-Earth relationships
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A) is behavioral analysis.
B) involves spatial analysis.
C) uses chronological organization.
D) is field work.
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A) place memorization.
B) the study of rocks.
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In order to study the planetesimal hypothesis, astronomers study this process in other parts of the Galaxy.
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The Milky Way is about 100,000 light-years from side to side.
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The Solar System, Sun, and Earth formed about 4.6 billion years ago.
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B) Spring equinox.
C) Winter solstice.
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The basis for defining the length of a day is the fact that
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Which of the following is true of the biosphere?
A) It is never referred to as the ecosphere.
B) It exists on other planets in the solar system.
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B) larger; less
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A) written
B) graphic
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C) written scale.
D) relative scale.
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The transformation of a spherical global to a 2D surface is a
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B) cone.
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B) graphic scale.
C) written scale.
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A) a small circle.
B) a great circle.
C) a prime meridian.
D) a line of equal longitude.
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A) earlier than
B) later than
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