Agricultural Science
WAEC 1991
What happens to the nitrogen and sulphur contents of vegetation when burning is used as a means of lans clearing? They
-
A.
are released by burning and lost as gases
-
B.
remain in ash as nitrates and sulphates
-
C.
raise the PH of an acid soil
-
D.
are released into the soil thus increasing the nutrients of the soil
-
E.
activate the soil microbes afetr burning
Correct Answer: Option A
Explanation
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