Biology > 2011 > 28
JAMB UTME
In an experiment to determine the percentage of humus and water in a soil
sample, the following results were obtained.
Weight of the evaporating basin alone = 80.5g
Weight of basin and soil = 101.5g
Weight after dying the soil in the oven = 99.0g
Weight of basin and roasted soil = 95.5g.
The percentage of humus in the soil sample is
sample, the following results were obtained.
Weight of the evaporating basin alone = 80.5g
Weight of basin and soil = 101.5g
Weight after dying the soil in the oven = 99.0g
Weight of basin and roasted soil = 95.5g.
The percentage of humus in the soil sample is
A.
16.7%
B.
17.6%
C.
26.7%
D.
16.2%.
Answer: C
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