What is eutrophication?

Consider the following statements and select correct set w.r.t. global warming (a) EI Nino effect (b) Cooling of stratosphere and earth surface (c) Shifting of climatic zones (d) Snow blindness (e) Inpairment of hearing (f) Excessive deposition of ice at poles (g) Rise in sea level (h) Increase in eutrophication

Which of the following is a useful indicator of eutrophication ?

Which one is incorrect statement regarding eutrophication?

Events that take place in eutrophication on given below (a) excessive growth of algae (b) depletion of dissolved oxygen (c ) bacteria feed on dead algae cells (d) aquatic body becomes rich in phosphates The correct order of events cells that occurs here is

Observe figure and answer the following questions. (i) The ecological term used to describe the DDT accumulation at different troohic levels ? (ii) List any one effect of DDT accumulation on birds. (iii) Will DDT accumulation lead to eutrophication ? (iv) Does it affect the BOD? (v) Name disease caused by accumulation of any heavy metal.

Define eutrophication ?

Accelerated eutrophication occurs due to

Main cause of eutrophication is:

How does an algal bloom cause eutrophication of a water body? Name the weed that can grow in such a eutrophic lake.

How does an algal bloom cause eutrophication of a water body? Name the weed that can grow in such a eutrophic lake.