Question

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Answer 1

Because the MIC of desinfact 1 is higher than the rest
MIC = minimal inhibitory concentration (just the diameter of the circle around the antibiotic disc)
The MIC of 3 is higher then 2 and 4 but lower then 1. So the different desinfectants are not equally effective against Escherichia coli.

Answer 2

sure i'll try

Answer 3

. At the end of eight weeks, the student found that the materials in compost bin A had undergone the most decomposition. The materials in compost bin B had decomposed the least. Use the graph in Figure 20–6 to explain these results.

Answer 4

So in each compost bin he added exact the same things? Whats the difference between them??? Also B didn't decomposed the least, C did.

Answer 5

or does higher temperature means higher decompostion?

Answer 6

The temperature in the bins is kept at 30C ? how can B be below that?

Answer 7

@thomaster