second set of experiments

	Control	A	B	C

Hours placed under the sun	0	4	4 1/2	5
Percentage of area nutrient agar covered	34%	11%	6%	4%

In the second set of experiments, the control has the highest percentage of area covered on the agar, followed by samples A, B and C respectively. Sample A that was under the sun for the shortest period of time had the highest percentage of area covered by bacteria on the nutrient agar. Correspondingly  sample C that was placed under the sun for the longest period of time had the lowest percentage of area covered.

set 2's result