EASY
NEET
IMPORTANT
Earn 100

The high value of BOD (Biochemical Oxygen Demand) indicates that:
(a)Water is pure
(b)Water is highly polluted
(c)Water is less polluted
(d)Consumption of inorganic matter in the water is higher by the microbes

89.23% studentsanswered this correctly

Important Questions on Microbes in Human Welfare
HARD
NEET
IMPORTANT
Match the following list of microbes and their importance:
Column I | Column II | ||
A | Lactobacillus | (i) | Production of genetically-engineered clot busters |
B | Monascus purpureus | (ii) | Production of citric acid |
C | Streptococcus | (iii) | Conversion of milk into curd |
D | Aspergillus niger | (iv) | Production of blood-cholesterol lowering agents |

EASY
NEET
IMPORTANT
What gases are produced in anaerobic sludge digesters?
