In 1999 November, the Government of Andhra Pradesh had declared the Kolleru lake as ……………

The Mercury, Arsenic and Lead in pesticides …………

Entry of pollutants into a food chain is ……………

The bio indicators of heavy metal pollutants

The tendency of pollutants to concentrate as they move from one trophic level to the next is ……………

The common scale carp which is used as food in Edulabad Water Reservoir is

The metal which causes Minamata disease is …………

Which of the following is not an alternative to pesticides ?

Many pollutants are released into water from an industrial area. If residue appears in living organisms of a food chain, then it is called

The aquatic biota is being contaminated with heavy metals due to industrialization and anthropogenic activities. The above statement is ……………

Arsenic elements are seen in milk of cow. The correct word that explains it.

The following is not a reason for imbalance in ecosystem.

Latha says excessive nutrient addition, especially from anthropogenic sources, led to explosive weed growth. Sarala denied Latha’s hypothesis.

The bio-accumulated components of pesticides which entered the food chain are :

Which of the following is not a biodegradable substance ?