Bioturbation is the result of actions of ________

A) animals
B) erosion
C) plant roots
D) soil acidity
E) gravitational pull


Answer: A

Environmental & Atmospheric Sciences

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Which of the following soil types is most likely to be found in mountainous or sandy regions?

A) Mollisols B) Histosols C) Entisols D) Inceptisols

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There are no significant Protestant denominations that allow women to preach

Indicate whether the statement is true or false.

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Which of the following physical properties are unreliable and not unique to a particular mineral and so must be used only cautiously when identifying minerals in the absence of scientific instruments?

A. cleavage B. hardness C. color D. density

Environmental & Atmospheric Sciences

Which of the following statements is true?

A) Not all of the electrons in the valence shell are valence electrons. B) The valence shell is usually the most unreactive shell. C) The valence shell always gives us the electron dot structure. D) The electron dot structure is made up of each of the valence shells. E) none of the above

Environmental & Atmospheric Sciences