Biology- Microbes in Human Welfare

methane gas ✘ methane and carbon dioxide ✘ methane and hydrogen ✘ methane, carbon dioxide, hydrogen. ✔

are photosynthetic ✘ grow easily anywhere ✘ have mucilage ✘ fix atmospheric nitrogen ✔

Wine ✘ Whisky ✘ Rum ✘ Brandy ✔

burnt ✘ burned in land fills ✘ used as manure ✘ used in civil construction. ✔

total organic matter ✘ biodegradable organic matter ✘ oxygen evolution ✘ oxygen consumption. ✔

vitamin C ✘ vitamin D ✘ vitamin B12 ✘ vitamin E. ✔

dissolved impurities ✘ stable particles ✘ toxic substances ✘ harmful bacteria. ✔

Anabaena ✘ Nostoc ✘ Azotobacter ✘ Pseudomonas ✔

process of oxidation of the dough ✘ formation of large amount of CO2 ✘ consumption of carbohydrates ✘ all of these ✔

fermentation ✘ glycolysis ✘ citric acid cycle ✘ P-oxidation ✔