Solution: Option (a) is the answer. During secondary treatment, a huge amount of activated sludge is generated, which is used as an inoculum, and a small portion of it is piped back to the massive...
Wastewater treatment generates a large quantity of sludge, which can be treated by:
The vitamin whose content increases following the conversion of milk into curd by lactic acid bacteria is
a. vitamin C
b. vitamin D
c. vitamin B12
d. vitamin E.
Solution: Option (c) is the answer 1. The bacteria lactobacillus converts the lactose in the milk into lactic acid, resulting in curd. 2. The nutritional content of the curd will change in...