Mushroom cultivation is not useful in
A. biogas production
B. biological control of crop diseases
C. recycling of agricultural wastes
D. preventing cancer
Answer: Option B
A. biogas production
B. biological control of crop diseases
C. recycling of agricultural wastes
D. preventing cancer
Answer: Option B
The chemical used for destroying fungi in water tanks is
A. copper sulphate
B. magnesium sulphate
C. zinc sulphate
D. nitric acid
The virus without capsid but only with nucleic acids is called
A. capsomere
B. viroid
C. prion
D. virion
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