2011 · Q96
Which one among the following consequences will happen if large quantities of domestic sewage are continuously discharged in a stream?
general-scienceecology
- AIncrease in the algal bloom of the stream water
- BIncrease in the temperature level of the stream water
- CReduction in the carbon dioxide level of the stream water
- DReduction in the dissolved oxygen level of the stream water
Explanation
Per the primary source key (and a CAPF-focused compilation citing Shankar IAS on eutrophication), nutrient-rich sewage causes algal blooms in the stream. Note: an independent practice source marks (D) reduction in dissolved oxygen instead, so this answer is contested.