The redox potential of a soil is -250 mV. Which of the following forms of the pertinent elements would you expect to find in the soil?
A) CO2 B) Mn4+ C) Fe2+ D) SO42- E) NO3-
C
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Three-dimensional rendering software calculates shading based on the ______________________________ of the part or object being rendered.
Fill in the blank(s) with the appropriate word(s).
The term __________ refers to the property of a material that absorbs or loses water.
A. mass density B. airatrons C. hygroscopic
Which of the following is an incorrect statement regarding air system fittings and transitions?
A) Their pressure loss is greater than that of a given length of the same size straight duct. B) They can be used to change the direction of airflow in a duct system. C) They have the same pressure loss per foot as the same size of straight duct. D) They can be used to change the velocity of airflow in an air duct system.
As electrons move from one atom to another, they create the appearance of a positive charge, called a(n) ______________________.
Fill in the blank(s) with the appropriate word(s).