Organic material offers microbes food in two phases. What are those phases and how do they work?
What will be an ideal response?
The first phase is shorter-lived and consists of harvested plant materials of new tissue that is not
decomposed. At this stage, soil microbes actively break down plant material particles and tie up much
of the available nitrogen in the soil so that it cannot be taken up by plants. Once on its way to
decomposition, the second form is much more useful to horticulturists as a soil amendment: brokendown
organic debris known as humus. At this point in the life of organic material, microbial activity is
slower and nitrogen is more readily available to the plant. Composting allows for organic materials to
be fully rotted, transitioning microbial activity from being nitrogen-needy to lower levels of activity so
that the benefits of air, water and nutrition can be derived by plant roots.
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Which flushometers or faucets are required in maximum-security institutions?
a. hold-open b. self-closing c. non-hold-open d. loose key
Los niveles de iluminación en los pasillos de áreas públicas de un edificio deben tener al menos:
a. el mismo nivel de iluminación que las áreas adyacentes. b. el 20% del nivel de iluminación de las áreas adyacentes. c. el 50% del nivel de iluminación de las áreas adyacentes. d. el 75% del nivel de iluminación de las áreas adyacentes
Determine the flexural stiffness of the beam in Figure P7.35 (see Example 7.16 for criteria) for (a) moment applied at A and (b) moment applied at C. E is constant. Solve by the conjugate beam method.
Coprophagy
What will be an ideal response?