The most common carrier of communicable disease is
Ant
Housefly
Dragonfly
Spider
The following is an antibiotic.
Nitrogen oxide
Yeast
Sodium bicarbonate
Streptomycin
Yeast produces carbon dioxide by a process called
Evaporation
Respiration
Fermentation
Digestion
The algae commonly used as bio-fertilizers are called
Staphylococcus
Diatoms
Blue green algae
None of the above
Cholera is caused by
Bacteria
Virus
Protozoa
Fungi
Plant disease 'citrus canker' is caused by
Virus
Fungi
Bacteria
None of these
The bread dough rises because of
Kneading
Heat
Grinding
Growth of yeast cells
Carrier of dengue virus is
Housefly
Dragonfly
Female Aedes mosquito
Butterfly
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