Biology
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Past Questions
Question 4476
waec 2019
a
putrefaction
b
denitrification
c
fixation
d
nitrification
Question 4477
waec 2019
a
increases immediately after rainfall
b
increases at the end of the rain
c
decreases with an increase in the number of organisms
d
increases during the dry season
Question 4480
waec 2019
a
habitat
b
niche
c
trophic level
d
biotic community
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