Which among the following can lead to eutrophication in the water bodies?
1. Use of Fertilizers in nearby fields
3. Wastewater effluents
4. Runoff from abandoned mines

Select the correct option from the codes given below:

Answer: [D] 1, 2 & 3

Water enriched with nutrients leads to eutrophication. Decaying organic matter releases odorous gases and partially decomposed matter accumulates on the river or lakebed,  hereby limiting water’s suitability for human  consumption and other uses. High levels of fertilizer use has been associated with increased incidence of eutrophication in rivers and lakes in several of India’s most important water bodies, such as the Hussein Sagar in Hyderabad and Nainital in Uttar Pradesh.

This question is a part of GKToday's Integrated IAS General Studies Module