NEET2016ZoologyMicrobes in Human WelfareActual
A river with an inflow of domestic sewage rich in organic waste may result in:
Options
- ADrying of the river very soon due to algal bloom.
- BIncreased population of aquatic food web organisms.
- CAn increased production of fish due to biodegradable nutrients.
- DDeath of fish due to lack of oxygen.
Correct answer
D. Death of fish due to lack of oxygen.
Step-by-step solution
A river with an inflow of domestic sewage rich in organic waste will reduce the dissolved oxygen (DO) and may result in death of fish due to lack of oxygen.