All aspects of kirby-bauer test are standardized to assure reliability of comparison with the published standards. A. What might be the consequence of pouring the plates 2m deep instead of 4m deep?B. The Mueller-Hinton II plates are supposed to be used w/n a specific time after their preparation and should be free of visible moisture. What negative effect(s) might moisture have on the test?

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.